pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7959-032_the_Flying_Fish.ps) >>/Users/jc/w/tmp/Tune-7959-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Stewart/SCAJMR/032_the_Flying_Fish.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-7959-032_the_Flying_Fish.abc 490 ABC music file with the extracted tune(s)
Tune-7959-032_the_Flying_Fish.ps 33518 PostScript
Tune-7959-032_the_Flying_Fish.txt 490 Plain-text file with the extracted tune(s)
Tune-7959-get.log 4688 Log file, useful mostly for debugging
Tune-79592-30631_Flight_of_Fancy.abc 752 ABC music file with the extracted tune(s)
Tune-79592-30631_Flight_of_Fancy.ps 36189 PostScript
Tune-79592-30631_Flight_of_Fancy.txt 752 Plain-text file with the extracted tune(s)
Tune-79592-get.log 10055 Log file, useful mostly for debugging
These files should be available for 24 hours.