pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4238-Westminster_Bridge.ps) >>/Users/jc/w/tmp/Tune-4238-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/Westminster_Bridge.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-4238-Westminster_Bridge.abc 413 ABC music file with the extracted tune(s)
Tune-4238-Westminster_Bridge.ps 32941 PostScript
Tune-4238-Westminster_Bridge.txt 413 Plain-text file with the extracted tune(s)
Tune-4238-get.log 4625 Log file, useful mostly for debugging
Tune-42382-Thompson_V4_1773-1780_PD.abc 162 ABC music file with the extracted tune(s)
Tune-42382-Thompson_V4_1773-1780_PD.ps 6 PostScript
Tune-42382-Thompson_V4_1773-1780_PD.txt 162 Plain-text file with the extracted tune(s)
Tune-42382-get.log 7665 Log file, useful mostly for debugging
Tune-42385-get.log 3464 Log file, useful mostly for debugging
Tune-42386-get.log 7428 Log file, useful mostly for debugging
Tune-42389-get.log 9776 Log file, useful mostly for debugging
These files should be available for 24 hours.