pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8376-30682_Lady_Bartletts_Whim.ps) >>/Users/jc/w/tmp/Tune-8376-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30682_Lady_Bartletts_Whim.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_8376.log 459809 Log file, useful mostly for debugging
Coll_83761.log 942021 Log file, useful mostly for debugging
Find_83761.log 1449 Log file, useful mostly for debugging
Find_83765.log 1449 Log file, useful mostly for debugging
Find_83766.log 1449 Log file, useful mostly for debugging
Tune-8376-30682_Lady_Bartletts_Whim.abc 962 ABC music file with the extracted tune(s)
Tune-8376-30682_Lady_Bartletts_Whim.ps 38433 PostScript
Tune-8376-30682_Lady_Bartletts_Whim.txt 962 Plain-text file with the extracted tune(s)
Tune-8376-get.log 8196 Log file, useful mostly for debugging
Tune-83760-get.log 8769 Log file, useful mostly for debugging
Tune-83762-get.log 4201 Log file, useful mostly for debugging
Tune-83764-get.log 14398 Log file, useful mostly for debugging
Tune-83765-get.log 3388 Log file, useful mostly for debugging
These files should be available for 24 hours.