pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-25335-031-Minuetto_1_v1.ps) >>/Users/jc/w/tmp/Tune-25335-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/IgnatiusSancho/MCCD/031-Minuetto_1_v1.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-25335-031-Minuetto_1_v1.abc 2178 ABC music file with the extracted tune(s)
Tune-25335-031-Minuetto_1_v1.ps 46771 PostScript
Tune-25335-031-Minuetto_1_v1.txt 2178 Plain-text file with the extracted tune(s)
Tune-25335-get.log 4648 Log file, useful mostly for debugging
These files should be available for 24 hours.