pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7961-DiamondJig.ps) >>/Users/jc/w/tmp/Tune-7961-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/DiamondJig.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-7961-DiamondJig.abc 503 ABC music file with the extracted tune(s)
Tune-7961-DiamondJig.ps 33965 PostScript
Tune-7961-DiamondJig.txt 503 Plain-text file with the extracted tune(s)
Tune-7961-get.log 4493 Log file, useful mostly for debugging
Tune-79612-IgnatiusSancho_CNS_v2.abc 160 ABC music file with the extracted tune(s)
Tune-79612-IgnatiusSancho_CNS_v2.pdf 2217 Portable Data Format
Tune-79612-IgnatiusSancho_CNS_v2.ps 6 PostScript
Tune-79612-IgnatiusSancho_CNS_v2.txt 160 Plain-text file with the extracted tune(s)
Tune-79612-get.log 5213 Log file, useful mostly for debugging
Tune-79619-get.log 4921 Log file, useful mostly for debugging
These files should be available for 24 hours.