pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5536-30483-New_Rigged_Ship-V1.ps) >>/Users/jc/w/tmp/Tune-5536-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30483-New_Rigged_Ship-V1.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-5536-30483-New_Rigged_Ship-V1.abc 890 ABC music file with the extracted tune(s)
Tune-5536-30483-New_Rigged_Ship-V1.ps 36182 PostScript
Tune-5536-30483-New_Rigged_Ship-V1.txt 890 Plain-text file with the extracted tune(s)
Tune-5536-get.log 4915 Log file, useful mostly for debugging
Tune-55361-10651_.abc 50 ABC music file with the extracted tune(s)
Tune-55361-10651_.ps 6 PostScript
Tune-55361-10651_.txt 50 Plain-text file with the extracted tune(s)
Tune-55361-get.log 3842 Log file, useful mostly for debugging
Tune-55368-get.log 5489 Log file, useful mostly for debugging
These files should be available for 24 hours.