pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2251-JerseyLightningJig.ps) >>/Users/jc/w/tmp/Tune-2251-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/JerseyLightningJig.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_22513.log 153217 Log file, useful mostly for debugging
Coll_22518.log 672612 Log file, useful mostly for debugging
Tune-2251-JerseyLightningJig.abc 721 ABC music file with the extracted tune(s)
Tune-2251-JerseyLightningJig.ps 39998 PostScript
Tune-2251-JerseyLightningJig.txt 721 Plain-text file with the extracted tune(s)
Tune-2251-get.log 5370 Log file, useful mostly for debugging
Tune-22510-get.log 3106 Log file, useful mostly for debugging
Tune-22512-get.log 4145 Log file, useful mostly for debugging
Tune-22513-get.log 1366 Log file, useful mostly for debugging
Tune-22514-get.log 1283 Log file, useful mostly for debugging
Tune-22515-get.log 5258 Log file, useful mostly for debugging
Tune-22518-get.log 6315 Log file, useful mostly for debugging
Tune-22519-get.log 3512 Log file, useful mostly for debugging
These files should be available for 24 hours.