pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7398-Itchy_Fingers1_A.ps) >>/Users/jc/w/tmp/Tune-7398-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Itchy_Fingers1_A.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_7398.log 378465 Log file, useful mostly for debugging
Coll_73981.log 249204 Log file, useful mostly for debugging
Coll_73987.log 523180 Log file, useful mostly for debugging
Tune-7398-Itchy_Fingers1_A.abc 633 ABC music file with the extracted tune(s)
Tune-7398-Itchy_Fingers1_A.ps 37070 PostScript
Tune-7398-Itchy_Fingers1_A.txt 633 Plain-text file with the extracted tune(s)
Tune-7398-get.log 4550 Log file, useful mostly for debugging
Tune-73985-get.log 3483 Log file, useful mostly for debugging
These files should be available for 24 hours.