-//
-// midiitem.cc
-//
-// source file of the GNU LilyPond music typesetter
-//
-// (c) 1997 Jan Nieuwenhuizen <jan@digicash.com>
-
-#include <limits.h>
+/*
+ midi-item.cc -- implement Midi items.
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--1998 Jan Nieuwenhuizen <janneke@gnu.org>
+ */
+
#include "proto.hh"
#include "plist.hh"
-#include "p-col.hh"
+#include "pcursor.hh"
#include "debug.hh"
#include "misc.hh"
#include "string.hh"
#include "string-convert.hh"
-#include "request.hh"
+#include "command-request.hh"
#include "musical-request.hh"
-#include "voice.hh"
#include "midi-item.hh"
#include "midi-stream.hh"
+#include "audio-item.hh"
-Midi_chunk::Midi_chunk()
+IMPLEMENT_IS_TYPE_B (Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_chunk, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_duration, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_header, Midi_chunk);
+IMPLEMENT_IS_TYPE_B1 (Midi_instrument, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_key,Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_time_signature, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_note, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_note_off, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_tempo, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_text, Midi_item);
+IMPLEMENT_IS_TYPE_B1 (Midi_track, Midi_chunk);
+
+Midi_chunk::Midi_chunk ()
+ : Midi_item (0)
{
}
void
-Midi_chunk::add( String str )
+Midi_chunk::set (String header_str, String data_str, String footer_str)
{
- data_str_ += str;
+ data_str_ = data_str;
+ footer_str_ = footer_str;
+ header_str_ = header_str;
+}
+
+String
+Midi_chunk::data_str () const
+{
+ return data_str_;
}
-void
-Midi_chunk::set( String header_str, String data_str, String footer_str )
+String
+Midi_chunk::str () const
{
- data_str_ = data_str;
- footer_str_ = footer_str;
- header_str_ = header_str;
+ String str = header_str_;
+ String dat = data_str ();
+#if 1
+ String length_str = String_convert::i2hex_str (dat.length_i ()
+#else
+ // huh, huh??
+ String length_str = String_convert::i2hex_str (data_str_.length_i ()
+#endif
+ + footer_str_.length_i (), 8, '0');
+ length_str = String_convert::hex2bin_str (length_str);
+ str += length_str;
+ str += dat;
+ str += footer_str_;
+ return str;
}
-
+
+Midi_duration::Midi_duration (Real seconds_f)
+ : Midi_item (0)
+{
+ seconds_f_ = seconds_f;
+}
+
String
-Midi_chunk::str() const
+Midi_duration::str () const
{
- String str = header_str_;
- String length_str = String_convert::i2hex_str( data_str_.length_i() + footer_str_.length_i(), 8, '0' );
- length_str = String_convert::hex2bin_str( length_str );
- str += length_str;
- str += data_str_;
- str += footer_str_;
- return str;
+ return String ("<duration: ") + to_str (seconds_f_) + ">";
}
-Midi_duration::Midi_duration( Real seconds_f )
+Midi_event::Midi_event (Moment delta_mom, Midi_item* mitem_p)
{
- seconds_f_ = seconds_f;
+ delta_mom_ = delta_mom;
+ mitem_p_ = mitem_p;
+}
+
+Midi_event::~Midi_event ()
+{
+// uhuh
+// delete mitem_p_;
}
String
-Midi_duration::str() const
+Midi_event::str () const
{
- return String( "<duration: " ) + String( seconds_f_ ) + ">";
+ int delta_i = delta_mom_ * Moment (Duration::division_1_i_s);
+ String delta_str = Midi_item::i2varint_str (delta_i);
+ String mitem_str = mitem_p_->str ();
+ assert (mitem_str.length_i ());
+ return delta_str + mitem_str;
}
-Midi_header::Midi_header( int format_i, int tracks_i, int clocks_per_4_i )
+
+Midi_header::Midi_header (int format_i, int tracks_i, int clocks_per_4_i)
+ : Midi_chunk ()
{
- String str;
+ String str;
- String format_str = String_convert::i2hex_str( format_i, 4, '0' );
- str += String_convert::hex2bin_str( format_str );
+ String format_str = String_convert::i2hex_str (format_i, 4, '0');
+ str += String_convert::hex2bin_str (format_str);
- String tracks_str = String_convert::i2hex_str( tracks_i, 4, '0' );
- str += String_convert::hex2bin_str( tracks_str );
+ String tracks_str = String_convert::i2hex_str (tracks_i, 4, '0');
+ str += String_convert::hex2bin_str (tracks_str);
+
+ String tempo_str = String_convert::i2hex_str (clocks_per_4_i, 4, '0');
+ str += String_convert::hex2bin_str (tempo_str);
+
+ set ("MThd", str, "");
+}
- String tempo_str = String_convert::i2hex_str( clocks_per_4_i, 4, '0' );
- str += String_convert::hex2bin_str( tempo_str );
+char const* const instrument_name_sz_a_[ ] = {
- set( "MThd", str, "" );
+ /* default is usually piano */
+ /* 0 "piano", */
+
+ /* (1-8 piano) */
+ /* 1 */ "acoustic grand",
+ /* 2 */ "bright acoustic",
+ /* 3 */ "electric grand",
+ /* 4 */ "honky-tonk",
+ /* 5 */ "electric piano 1",
+ /* 6 */ "electric piano 2",
+ /* 7 */ "harpsichord",
+ /* 8 */ "clav",
+
+ /* (9-16 chrom percussion) */
+ /* 9 */ "celesta",
+ /* 10 */ "glockenspiel",
+ /* 11 */ "music box",
+ /* 12 */ "vibraphone",
+ /* 13 */ "marimba",
+ /* 14 */ "xylophone",
+ /* 15 */ "tubular bells",
+ /* 16 */ "dulcimer",
+
+ /* (17-24 organ) */
+ /* 17 */ "drawbar organ",
+ /* 18 */ "percussive organ",
+ /* 19 */ "rock organ",
+ /* 20 */ "church organ",
+ /* 21 */ "reed organ",
+ /* 22 */ "accordion",
+ /* 23 */ "harmonica",
+ /* 24 */ "concertina",
+
+ /* (25-32 guitar) */
+ /* 25 */ "acoustic guitar (nylon)",
+ /* 26 */ "acoustic guitar (steel)",
+ /* 27 */ "electric guitar (jazz)",
+ /* 28 */ "electric guitar (clean)",
+ /* 29 */ "electric guitar (muted)",
+ /* 30 */ "overdriven guitar",
+ /* 31 */ "distorted guitar",
+ /* 32 */ "guitar harmonics",
+
+ /* (33-40 bass) */
+ /* 33 */ "acoustic bass",
+ /* 34 */ "electric bass (finger)",
+ /* 35 */ "electric bass (pick)",
+ /* 36 */ "fretless bass",
+ /* 37 */ "slap bass 1",
+ /* 38 */ "slap bass 2",
+ /* 39 */ "synth bass 1",
+ /* 40 */ "synth bass 2",
+
+ /* (41-48 strings) */
+ /* 41 */ "violin",
+ /* 42 */ "viola",
+ /* 43 */ "cello",
+ /* 44 */ "contrabass",
+ /* 45 */ "tremolo strings",
+ /* 46 */ "pizzicato strings",
+ /* 47 */ "orchestral strings",
+ /* 48 */ "timpani",
+
+ /* (49-56 ensemble) */
+ /* 49 */ "string ensemble 1",
+ /* 50 */ "string ensemble 2",
+ /* 51 */ "synthstrings 1",
+ /* 52 */ "synthstrings 2",
+ /* 53 */ "choir aahs",
+ /* 54 */ "voice oohs",
+ /* 55 */ "synth voice",
+ /* 56 */ "orchestra hit",
+
+ /* (57-64 brass) */
+ /* 57 */ "trumpet",
+ /* 58 */ "trombone",
+ /* 59 */ "tuba",
+ /* 60 */ "muted trumpet",
+ /* 61 */ "french horn",
+ /* 62 */ "brass section",
+ /* 63 */ "synthbrass 1",
+ /* 64 */ "synthbrass 2",
+
+ /* (65-72 reed) */
+ /* 65 */ "soprano sax",
+ /* 66 */ "alto sax",
+ /* 67 */ "tenor sax",
+ /* 68 */ "baritone sax",
+ /* 69 */ "oboe",
+ /* 70 */ "english horn",
+ /* 71 */ "bassoon",
+ /* 72 */ "clarinet",
+
+ /* (73-80 pipe) */
+ /* 73 */ "piccolo",
+ /* 74 */ "flute",
+ /* 75 */ "recorder",
+ /* 76 */ "pan flute",
+ /* 77 */ "blown bottle",
+ /* 78 */ "skakuhachi",
+ /* 79 */ "whistle",
+ /* 80 */ "ocarina",
+
+ /* (81-88 synth lead) */
+ /* 81 */ "lead 1 (square)",
+ /* 82 */ "lead 2 (sawtooth)",
+ /* 83 */ "lead 3 (calliope)",
+ /* 84 */ "lead 4 (chiff)",
+ /* 85 */ "lead 5 (charang)",
+ /* 86 */ "lead 6 (voice)",
+ /* 87 */ "lead 7 (fifths)",
+ /* 88 */ "lead 8 (bass+lead)",
+
+ /* (89-96 synth pad) */
+ /* 89 */ "pad 1 (new age)",
+ /* 90 */ "pad 2 (warm)",
+ /* 91 */ "pad 3 (polysynth)",
+ /* 92 */ "pad 4 (choir)",
+ /* 93 */ "pad 5 (bowed)",
+ /* 94 */ "pad 6 (metallic)",
+ /* 95 */ "pad 7 (halo)",
+ /* 96 */ "pad 8 (sweep)",
+
+ /* (97-104 synth effects) */
+ /* 97 */ "fx 1 (rain)",
+ /* 98 */ "fx 2 (soundtrack)",
+ /* 99 */ "fx 3 (crystal)",
+ /* 100 */ "fx 4 (atmosphere)",
+ /* 101 */ "fx 5 (brightness)",
+ /* 102 */ "fx 6 (goblins)",
+ /* 103 */ "fx 7 (echoes)",
+ /* 104 */ "fx 8 (sci-fi)",
+
+ /* (105-112 ethnic) */
+ /* 105 */ "sitar",
+ /* 106 */ "banjo",
+ /* 107 */ "shamisen",
+ /* 108 */ "koto",
+ /* 109 */ "kalimba",
+ /* 110 */ "bagpipe",
+ /* 111 */ "fiddle",
+ /* 112 */ "shanai",
+
+ /* (113-120 percussive) */
+ /* 113 */ "tinkle bell",
+ /* 114 */ "agogo",
+ /* 115 */ "steel drums",
+ /* 116 */ "woodblock",
+ /* 117 */ "taiko drum",
+ /* 118 */ "melodic tom",
+ /* 119 */ "synth drum",
+ /* 120 */ "reverse cymbal",
+
+ /* (121-128 sound effects) */
+ /* 121 */ "guitar fret noise",
+ /* 122 */ "breath noise",
+ /* 123 */ "seashore",
+ /* 124 */ "bird tweet",
+ /* 125 */ "telephone ring",
+ /* 126 */ "helicopter",
+ /* 127 */ "applause",
+ /* 128 */ "gunshot",
+ 0
+};
+
+Midi_instrument::Midi_instrument (int channel_i, String instrument_str)
+ : Midi_item (0)
+{
+ instrument_str_ = instrument_str;
+ instrument_str_.to_lower ();
+ channel_i_ = channel_i;
+}
+
+Midi_item::~Midi_item ()
+{
}
String
-Midi_item::i2varint_str( int i )
+Midi_instrument::str () const
{
- int buffer_i = i & 0x7f;
- while ( (i >>= 7) > 0 ) {
- buffer_i <<= 8;
- buffer_i |= 0x80;
- buffer_i += (i & 0x7f);
+ Byte program_byte = 0;
+ for (int i = 0; instrument_name_sz_a_[i]; i++)
+ if (instrument_str_ == String (instrument_name_sz_a_[ i ]))
+ {
+ program_byte = (Byte)i;
+ break;
+ }
+
+ String str = to_str ((char) (0xc0 + channel_i_));
+ str += to_str ((char)program_byte);
+ return str;
+}
+
+Midi_item::Midi_item (Audio_item* audio_item_l)
+{
+ audio_item_l_ = audio_item_l;
+ channel_i_ = 0;
+}
+
+String
+Midi_item::i2varint_str (int i)
+{
+ int buffer_i = i & 0x7f;
+ while ( (i >>= 7) > 0)
+ {
+ buffer_i <<= 8;
+ buffer_i |= 0x80;
+ buffer_i += (i & 0x7f);
}
- String str;
- while ( 1 ) {
- str += (char)buffer_i;
- if ( buffer_i & 0x80 )
- buffer_i >>= 8;
- else
- break;
+ String str;
+ while (1)
+ {
+ str += to_str ((char)buffer_i);
+ if (buffer_i & 0x80)
+ buffer_i >>= 8;
+ else
+ break;
}
- return str;
+ return str;
}
-void
-Midi_item::output_midi( Midi_stream& midi_stream_r ) const
+Midi_key::Midi_key (Audio_item* audio_item_l)
+ : Midi_item (audio_item_l)
+{
+}
+
+String
+Midi_key::str () const
{
- midi_stream_r << str();
+ Key_change_req* k = dynamic_cast <Key_change_req *> (audio_item_l_->req_l_);
+ int sharps_i = k->sharps_i ();
+ int flats_i = k->flats_i ();
+
+ // midi cannot handle non-conventional keys
+ if (flats_i && sharps_i)
+ {
+ String str = _f ("unconventional key: flats: %d, sharps: %d", flats_i,
+ sharps_i);
+ flats_i = sharps_i = 0;
+ }
+ int accidentals_i = sharps_i - flats_i;
+
+ String str = "ff5902";
+ str += String_convert::i2hex_str (accidentals_i, 2, '0');
+ int minor_i = k->minor_b ();
+ str += String_convert::i2hex_str (minor_i, 2, '0');
+ return String_convert::hex2bin_str (str);
}
-Midi_key::Midi_key( int accidentals_i, int minor_i )
+Midi_time_signature::Midi_time_signature (Audio_item* audio_item_l)
+ : Midi_item (audio_item_l)
{
- accidentals_i_ = accidentals_i;
- minor_i_ = minor_i;
+ clocks_per_1_i_ = 18;
}
String
-Midi_key::str() const
+Midi_time_signature::str () const
{
- String str = "ff5902";
- str += String_convert::i2hex_str( accidentals_i_, 2, '0' );
- str += String_convert::i2hex_str( minor_i_, 2, '0' );
- return String_convert::hex2bin_str( str );
+ Time_signature_change_req* m = dynamic_cast <Time_signature_change_req *> (audio_item_l_->req_l_);
+ int num_i = m->beats_i_;
+ int den_i = m->one_beat_i_;
+
+ String str = "ff5804";
+ str += String_convert::i2hex_str (num_i, 2, '0');
+ str += String_convert::i2hex_str (intlog2 (den_i) , 2, '0');
+ str += String_convert::i2hex_str (clocks_per_1_i_, 2, '0');
+ str += String_convert::i2hex_str (8, 2, '0');
+ return String_convert::hex2bin_str (str);
}
-Midi_note::Midi_note( Melodic_req* melreq_l, int channel_i, bool on_bo )
+Midi_note::Midi_note (Audio_item* audio_item_l)
+ : Midi_item (audio_item_l)
{
- assert(melreq_l);
- pitch_i_ = melreq_l->pitch() + c0_pitch_i_c_;
- channel_i_ = channel_i;
-
- on_b_ = on_bo;
+ dynamic_byte_ = 0x7f;
+}
- dynamic_byte_ = 0x64;
- if ( on_b_ ) // poor man-s staff dynamics:
- dynamic_byte_ -= 0x10 * channel_i_;
- else
- dynamic_byte_ += 0x32; // 0x64 is supposed to be neutral, but let-s try
+Moment
+Midi_note::duration () const
+{
+ Moment m = dynamic_cast <Rhythmic_req *> (audio_item_l_->req_l_)->duration ();
+ if (m < Moment (1, 1000))
+ {
+ warning (_ ("silly duration"));
+ m = 1;
+ }
+ return m;
+}
+
+int
+Midi_note::pitch_i () const
+{
+ int p = dynamic_cast <Melodic_req*> (audio_item_l_->req_l_)->pitch_.semitone_pitch ()
+ + ((Audio_note*)audio_item_l_)->transposing_i_;
+ if (p == INT_MAX)
+ {
+ warning (_ ("silly pitch"));
+ p = 0;
+ }
+ return p;
}
String
-Midi_note::str() const
-{
- if ( pitch_i_ != INT_MAX ) {
- Byte status_byte = ( on_b_ ? 0x90 : 0x80 ) + channel_i_;
- String str = String( (char)status_byte );
- str += (char)pitch_i_;
- // poor man-s staff dynamics:
- str += (char)dynamic_byte_;
- return str;
- }
- return String( "" );
+Midi_note::str () const
+{
+ Byte status_byte = (char) (0x90 + channel_i_);
+
+ String str = to_str ((char)status_byte);
+ str += to_str ((char) (pitch_i () + c0_pitch_i_c_));
+
+ // poor man's staff dynamics:
+ str += to_str ((char) (dynamic_byte_ - 0x10 * channel_i_));
+
+ return str;
}
-Midi_tempo::Midi_tempo( int per_minute_4_i )
+Midi_note_off::Midi_note_off (Midi_note* midi_note_l)
+ : Midi_item (midi_note_l->audio_item_l_)
{
- per_minute_4_i_ = per_minute_4_i;
+ // 0x64 is supposed to be neutral, but let's try
+ aftertouch_byte_ = 0x64;
+ channel_i_ = midi_note_l->channel_i_;
+}
+
+int
+Midi_note_off::pitch_i () const
+{
+ return dynamic_cast <Melodic_req *> (audio_item_l_->req_l_)->pitch_.semitone_pitch ()
+ + ((Audio_note*)audio_item_l_)->transposing_i_;
}
String
-Midi_tempo::str() const
+Midi_note_off::str () const
+{
+ Byte status_byte = (char) (0x80 + channel_i_);
+
+ String str = to_str ((char)status_byte);
+ str += to_str ((char) (pitch_i () + Midi_note::c0_pitch_i_c_));
+ str += to_str ((char)aftertouch_byte_);
+ return str;
+}
+
+Midi_tempo::Midi_tempo (Audio_item* audio_item_l)
+ : Midi_item (audio_item_l)
{
- int useconds_per_4_i = 60 * (int)1e6 / per_minute_4_i_;
- String str = "ff5103";
- str += String_convert::i2hex_str( useconds_per_4_i, 6, '0' );
- return String_convert::hex2bin_str( str );
+ per_minute_4_i_ = ( (Audio_tempo*)audio_item_l_)->per_minute_4_i_;
}
-Midi_time::Midi_time( int num_i, int den_i, int clocks_per_1_i )
+Midi_tempo::Midi_tempo (int per_minute_4_i)
+ : Midi_item (0)
{
- num_i_ = num_i;
- den_i_ = den_i;
- clocks_per_1_i_ = clocks_per_1_i;
+ per_minute_4_i_ = per_minute_4_i;
}
String
-Midi_time::str() const
+Midi_tempo::str () const
{
- String str = "ff5804";
- str += String_convert::i2hex_str( num_i_, 2, '0' );
- str += String_convert::i2hex_str( intlog2( den_i_ ) , 2, '0' );
- str += String_convert::i2hex_str( clocks_per_1_i_, 2, '0' );
- str += String_convert::i2hex_str( 8, 2, '0' );
- return String_convert::hex2bin_str( str );
+ int useconds_per_4_i = 60 * (int)1e6 / per_minute_4_i_;
+ String str = "ff5103";
+ str += String_convert::i2hex_str (useconds_per_4_i, 6, '0');
+ return String_convert::hex2bin_str (str);
}
-Midi_text::Midi_text( Midi_text::Type type, String text_str )
+Midi_text::Midi_text (Audio_item* audio_item_l)
+ : Midi_item (audio_item_l)
{
- type_ = type;
- text_str_ = text_str;
+ text_str_ = ( (Audio_text*)audio_item_l_)->text_str_;
+ type_ = (Type) ( (Audio_text*)audio_item_l_)->type_;
+}
+
+Midi_text::Midi_text (Midi_text::Type type, String text_str)
+ : Midi_item (0)
+{
+ text_str_ = text_str;
+ type_ = type;
}
String
-Midi_text::str() const
+Midi_text::str () const
{
- String str = "ff" + String_convert::i2hex_str( type_, 2, '0' );
- str = String_convert::hex2bin_str( str );
- str += i2varint_str( text_str_.length_i() );
- str += text_str_;
- return str;
+ String str = "ff" + String_convert::i2hex_str (type_, 2, '0');
+ str = String_convert::hex2bin_str (str);
+ str += i2varint_str (text_str_.length_i ());
+ str += text_str_;
+ return str;
}
-Midi_track::Midi_track( int number_i )
+Midi_track::Midi_track ()
+ : Midi_chunk ()
{
-// 4D 54 72 6B MTrk
-// 00 00 00 3B chunk length (59)
-// 00 FF 58 04 04 02 18 08 time signature
-// 00 FF 51 03 07 A1 20 tempo
+ // 4D 54 72 6B MTrk
+ // 00 00 00 3B chunk length (59)
+ // 00 FF 58 04 04 02 18 08 time signature
+ // 00 FF 51 03 07 A1 20 tempo
// FF 59 02 sf mi Key Signature
// sf = -7: 7 flats
// mi = 0: major key
// mi = 1: minor key
- number_i_ = number_i;
+ number_i_ = 0;
- char const* data_ch_C = ""
-// "00" "ff58" "0404" "0218" "08"
-// "00" "ff51" "0307" "a120"
-// why a key at all, in midi?
-// key: C
-// "00" "ff59" "02" "00" "00"
-// key: F (scsii-menuetto)
-// "00" "ff59" "02" "ff" "00"
+ char const* data_ch_C = ""
+ // "00" "ff58" "0404" "0218" "08"
+ // "00" "ff51" "0307" "a120"
+ // why a key at all, in midi?
+ // key: C
+ // "00" "ff59" "02" "00" "00"
+ // key: F (scsii-menuetto)
+ // "00" "ff59" "02" "ff" "00"
;
- String data_str;
- // only for format 0 (currently using format 1)?
- data_str += String_convert::hex2bin_str( data_ch_C );
+ String data_str;
+ // only for format 0 (currently using format 1)?
+ data_str += String_convert::hex2bin_str (data_ch_C);
- char const* footer_ch_C = "00" "ff2f" "00";
- String footer_str = String_convert::hex2bin_str( footer_ch_C );
+ char const* footer_ch_C = "00" "ff2f" "00";
+ String footer_str = String_convert::hex2bin_str (footer_ch_C);
- set( "MTrk", data_str, footer_str );
+ set ("MTrk", data_str, footer_str);
}
void
-Midi_track::add( int delta_time_i, String event_str )
+Midi_track::add (Moment delta_time_mom, Midi_item* mitem_p)
{
- if ( delta_time_i < 0 ) {
- cout << String_convert::bin2hex_str( i2varint_str( delta_time_i ) ) << endl;
- cout << String_convert::bin2hex_str( event_str ) << endl;
- }
- assert(delta_time_i >= 0);
- Midi_chunk::add( i2varint_str( delta_time_i ) + event_str );
+ assert (delta_time_mom >= Moment (0));
+
+ event_p_list_.bottom ().add (new Midi_event (delta_time_mom, mitem_p));
}
-void
-Midi_track::add( Moment delta_time_moment, Midi_item* mitem_l )
+String
+Midi_track::data_str () const
{
- // use convention of 384 clocks per 4
- // use Duration_convert
- int delta_time_i = delta_time_moment * Moment( 384 ) / Moment( 1, 4 );
- add( delta_time_i, mitem_l->str() );
+ String str = Midi_chunk::data_str ();
+ if (check_debug && !monitor->silent_b ("Midistrings"))
+ str += "\n";
+ for (PCursor<Midi_event*> i (event_p_list_); i.ok (); i++)
+ {
+ str += i->str ();
+ if (check_debug && !monitor->silent_b ("Midistrings"))
+ str += "\n";
+ }
+ return str;
}
+Midi_track::~Midi_track ()
+{
+}