pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3742-MichaelAShulmanCollection.ps) >>/Users/jc/w/tmp/Tune-3742-get.log 2>&1" returned status 256
http://www.gulfweb.net/rlwalker/abc/MichaelAShulmanCollection.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
Form_37427.log 832 Log file, useful mostly for debugging
Tune-3742-MichaelAShulmanCollection.abc 288 ABC music file with the extracted tune(s)
Tune-3742-MichaelAShulmanCollection.ps 35544 PostScript
Tune-3742-MichaelAShulmanCollection.txt 288 Plain-text file with the extracted tune(s)
Tune-3742-get.log 4589 Log file, useful mostly for debugging
These files should be available for 24 hours.