pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7540-Boston_Urban_Ceilidh-D-32-4.ps) >>/Users/jc/w/tmp/Tune-7540-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/reel/Boston_Urban_Ceilidh-D-32-4.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Form_75409.log 1509 Log file, useful mostly for debugging
Tune-7540-Boston_Urban_Ceilidh-D-32-4.abc 342 ABC music file with the extracted tune(s)
Tune-7540-Boston_Urban_Ceilidh-D-32-4.ps 36090 PostScript
Tune-7540-Boston_Urban_Ceilidh-D-32-4.txt 342 Plain-text file with the extracted tune(s)
Tune-7540-get.log 4531 Log file, useful mostly for debugging
Tune-75400-get.log 28122 Log file, useful mostly for debugging
Tune-75401-get.log 3345 Log file, useful mostly for debugging
Tune-75404-get.log 4877 Log file, useful mostly for debugging
Tune-75407-get.log 1407 Log file, useful mostly for debugging
These files should be available for 24 hours.