pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4581-103_Cotillon_Francoise.ps) >>/Users/jc/w/tmp/Tune-4581-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Stewart/SCAJMR/103_Cotillon_Francoise.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Form_45810.log 845 Log file, useful mostly for debugging
Form_45819.log 827 Log file, useful mostly for debugging
Tune-4581-103_Cotillon_Francoise.abc 548 ABC music file with the extracted tune(s)
Tune-4581-103_Cotillon_Francoise.ps 33998 PostScript
Tune-4581-103_Cotillon_Francoise.txt 548 Plain-text file with the extracted tune(s)
Tune-4581-get.log 4776 Log file, useful mostly for debugging
Tune-45818-141_Bonny_Lasssie_turn_you.abc 958 ABC music file with the extracted tune(s)
Tune-45818-141_Bonny_Lasssie_turn_you.pdf 21236 Portable Data Format
Tune-45818-141_Bonny_Lasssie_turn_you.ps 37924 PostScript
Tune-45818-141_Bonny_Lasssie_turn_you.txt 958 Plain-text file with the extracted tune(s)
Tune-45818-get.log 5870 Log file, useful mostly for debugging
These files should be available for 24 hours.