pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-84861-RobertBremner_CSRCD1.ps) >>/Users/jc/w/tmp/Tune-84861-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/RobertBremner_CSRCD1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_84861.log 542850 Log file, useful mostly for debugging
Tune-84861-RobertBremner_CSRCD1.abc 136058 ABC music file with the extracted tune(s)
Tune-84861-RobertBremner_CSRCD1.ps 990834 PostScript
Tune-84861-RobertBremner_CSRCD1.txt 136058 Plain-text file with the extracted tune(s)
Tune-84861-get.log 94792 Log file, useful mostly for debugging
These files should be available for 24 hours.