Hi there
It seems that the converter gets lost sometimes with beams when a voices crosses the two staves of a piano double-staff.
I send example attached:
- The musicxml (Sibelius)
- The MEI converted with Verovio (correct)
- The MEI converted with converter21
See measure 6 and the following.
C036_0_cnv.mei.txt
C036_0.musicxml.txt
C036_0.mei.txt
May thanks for your help