pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-43238-052_Waly_Waly.ps) >>/Users/jc/w/tmp/Tune-43238-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Barsanti/052_Waly_Waly.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_43238.log 683872 Log file, useful mostly for debugging
Tune-43238-052_Waly_Waly.abc 1010 ABC music file with the extracted tune(s)
Tune-43238-052_Waly_Waly.ps 37916 PostScript
Tune-43238-052_Waly_Waly.txt 1010 Plain-text file with the extracted tune(s)
Tune-43238-get.log 4450 Log file, useful mostly for debugging
These files should be available for 24 hours.