pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8885-P_M_Donald_MacLean_of_Lewis.ps) >>/Users/jc/w/tmp/Tune-8885-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/thisoldtractor.com/P_M_Donald_MacLean_of_Lewis.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
Coll_8885.log 260559 Log file, useful mostly for debugging
Coll_88854.log 1306303 Log file, useful mostly for debugging
Find_88850.log 1786 Log file, useful mostly for debugging
Form_88850.log 1697 Log file, useful mostly for debugging
Tune-8885-P_M_Donald_MacLean_of_Lewis.abc 846 ABC music file with the extracted tune(s)
Tune-8885-P_M_Donald_MacLean_of_Lewis.ps 46288 PostScript
Tune-8885-P_M_Donald_MacLean_of_Lewis.txt 846 Plain-text file with the extracted tune(s)
Tune-8885-get.log 4860 Log file, useful mostly for debugging
Tune-88850-get.log 1396 Log file, useful mostly for debugging
Tune-88851-get.log 2457 Log file, useful mostly for debugging
Tune-88855-get.log 3033 Log file, useful mostly for debugging
These files should be available for 24 hours.