pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-75452-2303-Marchioness_of_Tweeddales_Delight.ps) >>/Users/jc/w/tmp/Tune-75452-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/2303-Marchioness_of_Tweeddales_Delight.abc1.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_75452.log 1316429 Log file, useful mostly for debugging
Tune-75452-2303-Marchioness_of_Tweeddales_Delight.abc 795 ABC music file with the extracted tune(s)
Tune-75452-2303-Marchioness_of_Tweeddales_Delight.ps 34208 PostScript
Tune-75452-2303-Marchioness_of_Tweeddales_Delight.txt 795 Plain-text file with the extracted tune(s)
Tune-75452-get.log 5258 Log file, useful mostly for debugging
These files should be available for 24 hours.