pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-22826-016_Quick_Step.ps) >>/Users/jc/w/tmp/Tune-22826-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Stewart/SCAJMR/016_Quick_Step.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-22826-016_Quick_Step.abc 583 ABC music file with the extracted tune(s)
Tune-22826-016_Quick_Step.ps 35386 PostScript
Tune-22826-016_Quick_Step.txt 583 Plain-text file with the extracted tune(s)
Tune-22826-BritainsThe_PLFD1696_350.abc 405 ABC music file with the extracted tune(s)
Tune-22826-BritainsThe_PLFD1696_350.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-22826-BritainsThe_PLFD1696_350.ps 34364 PostScript
Tune-22826-BritainsThe_PLFD1696_350.txt 405 Plain-text file with the extracted tune(s)
Tune-22826-get.log 10184 Log file, useful mostly for debugging
These files should be available for 24 hours.