pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-51319-Pringles_Quickstep_Bb_ABBCC.ps) >>/Users/jc/w/tmp/Tune-51319-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/reel/Pringles_Quickstep_Bb_ABBCC.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-51319-Pringles_Quickstep_Bb_ABBCC.abc 762 ABC music file with the extracted tune(s)
Tune-51319-Pringles_Quickstep_Bb_ABBCC.ps 36114 PostScript
Tune-51319-Pringles_Quickstep_Bb_ABBCC.txt 762 Plain-text file with the extracted tune(s)
Tune-51319-get.log 4595 Log file, useful mostly for debugging
These files should be available for 24 hours.