-// *os_p_ << "% Creator: " << get_version();
-// *os_p_ << "% Automatically generated, at ";
-// time_t t(time(0));
-// *os_p_ << ctime(&t);
-
-// 4D 54 68 64 MThd
-// String str = "MThd";
-// 00 00 00 06 chunk length
-// 00 01 format 1
-// 00 01 one track
-// 00 60 96 per quarter-note
-
-// char const ch_c_l = "0000" "0006" "0001" "0001" "0060";
-// str += String_convert::hex2bin_str( ch_c_l );
-// *os_p_ << str;
+ size_t sz = sizeof (Byte);
+ size_t n = str.length ();
+ size_t written = fwrite (str.data (), sz, n, out_file_);