pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-54854-Aird_vol4_abc2.ps) >>/Users/jc/w/tmp/Tune-54854-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Aird/Aird_vol4_abc2.abc

Error exit status 256; here are some files to check:

[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-54854-Aird_vol4_abc2.abc 74771 ABC music file with the extracted tune(s)
Tune-54854-Aird_vol4_abc2.ps 1037270 PostScript
Tune-54854-Aird_vol4_abc2.txt 74771 Plain-text file with the extracted tune(s)
Tune-54854-get.log 118496 Log file, useful mostly for debugging
These files should be available for 24 hours.