pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-64053-cresc.ps) >>/Users/jc/w/tmp/Tune-64053-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/cresc.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-64053-FrolicThe_PLFD1701_440-001.svg 17936 Scalable Vector Graphics format
Tune-64053-FrolicThe_PLFD1701_440.abc 528 ABC music file with the extracted tune(s)
Tune-64053-FrolicThe_PLFD1701_440.txt 528 Plain-text file with the extracted tune(s)
Tune-64053-cresc.abc 36 ABC music file with the extracted tune(s)
Tune-64053-cresc.ps 6 PostScript
Tune-64053-cresc.txt 36 Plain-text file with the extracted tune(s)
Tune-64053-get.log 8253 Log file, useful mostly for debugging
These files should be available for 24 hours.