pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-43129-30053_Capt_Robert_Kidd.ps) >>/Users/jc/w/tmp/Tune-43129-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30053_Capt_Robert_Kidd.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_43129.log 466811 Log file, useful mostly for debugging
Tune-43129-30053_Capt_Robert_Kidd.abc 636 ABC music file with the extracted tune(s)
Tune-43129-30053_Capt_Robert_Kidd.ps 32649 PostScript
Tune-43129-30053_Capt_Robert_Kidd.txt 636 Plain-text file with the extracted tune(s)
Tune-43129-get.log 4892 Log file, useful mostly for debugging
These files should be available for 24 hours.