pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6206-cranford_tunes101-200.ps) >>/Users/jc/w/tmp/Tune-6206-get.log 2>&1" returned status 256
http://cranfordpub.com/tunes/abcs/cranford_tunes101-200.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_62062.log 63644 Log file, useful mostly for debugging
Form_62069.log 735 Log file, useful mostly for debugging
Tune-6206-cranford_tunes101-200.abc 591 ABC music file with the extracted tune(s)
Tune-6206-cranford_tunes101-200.ps 38258 PostScript
Tune-6206-cranford_tunes101-200.txt 591 Plain-text file with the extracted tune(s)
Tune-6206-get.log 4383 Log file, useful mostly for debugging
Tune-62062-get.log 3124 Log file, useful mostly for debugging
Tune-62065-get.log 4048 Log file, useful mostly for debugging
Tune-62068-get.log 4507 Log file, useful mostly for debugging
Tune-62069-get.log 5473 Log file, useful mostly for debugging
These files should be available for 24 hours.