pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-18598-oliph.ps) >>/Users/jc/w/tmp/Tune-18598-get.log 2>&1" returned status 256
http://nigelgatherer.com/tunes/abc/abc4/oliph.abc

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

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-18598-get.log 4537 Log file, useful mostly for debugging
Tune-18598-oliph.abc 445 ABC music file with the extracted tune(s)
Tune-18598-oliph.ps 37933 PostScript
Tune-18598-oliph.txt 445 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.