pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-23919-America.ps) >>/Users/jc/w/tmp/Tune-23919-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/America.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-23919-America.abc 615 ABC music file with the extracted tune(s)
Tune-23919-America.ps 35635 PostScript
Tune-23919-America.txt 615 Plain-text file with the extracted tune(s)
Tune-23919-Wilson_Harmony_4NCD_1812_V1.abc 163 ABC music file with the extracted tune(s)
Tune-23919-Wilson_Harmony_4NCD_1812_V1.txt 163 Plain-text file with the extracted tune(s)
Tune-23919-get.log 12774 Log file, useful mostly for debugging
These files should be available for 24 hours.