5 Arpeggios are supported, both cross-staff and broken single staff.
12 \context PianoStaff\notes <<
13 \new Staff \relative c''{
15 \override Staff.Arpeggio #'arpeggio-direction = #1
17 %%\override PianoStaff.SpanArpeggio #'connect = ##t
18 \set PianoStaff.connectArpeggios = ##t
21 \new Staff\relative c{
24 \override Staff.Arpeggio #'arpeggio-direction = #-1
29 \paper { raggedright= ##t }