pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5361-JamesOswald_CPCv2-V2.ps) >>/Users/jc/w/tmp/Tune-5361-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JamesOswald/CPCv2/JamesOswald_CPCv2-V2.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
Coll_53612.log 145832 Log file, useful mostly for debugging
Form_53616.log 864 Log file, useful mostly for debugging
Tune-5361-JamesOswald_CPCv2-V2.abc 619 ABC music file with the extracted tune(s)
Tune-5361-JamesOswald_CPCv2-V2.ps 40422 PostScript
Tune-5361-JamesOswald_CPCv2-V2.txt 619 Plain-text file with the extracted tune(s)
Tune-5361-get.log 4691 Log file, useful mostly for debugging
Tune-53610-get.log 4515 Log file, useful mostly for debugging
Tune-53618-get.log 1600 Log file, useful mostly for debugging
These files should be available for 24 hours.