pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17352-07_RosamondsPond.ps) >>/Users/jc/w/tmp/Tune-17352-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ThomasBraysCountryDances1699/07_RosamondsPond.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-17352-07_RosamondsPond.abc 2292 ABC music file with the extracted tune(s)
Tune-17352-07_RosamondsPond.ps 39740 PostScript
Tune-17352-07_RosamondsPond.txt 2292 Plain-text file with the extracted tune(s)
Tune-17352-get.log 4756 Log file, useful mostly for debugging
These files should be available for 24 hours.