pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67901-IsleOfSkyeR_Bb.ps) >>/Users/jc/w/tmp/Tune-67901-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/IsleOfSkyeR_Bb.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Coll_67901.log 1073940 Log file, useful mostly for debugging
Tune-67901-IsleOfSkyeR_Bb.abc 620 ABC music file with the extracted tune(s)
Tune-67901-IsleOfSkyeR_Bb.ps 35493 PostScript
Tune-67901-IsleOfSkyeR_Bb.txt 620 Plain-text file with the extracted tune(s)
Tune-67901-get.log 5111 Log file, useful mostly for debugging
These files should be available for 24 hours.