pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8590-2022_Lady_Cunninghams_Strathspey.ps) >>/Users/jc/w/tmp/Tune-8590-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/2022_Lady_Cunninghams_Strathspey.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_8590.log 268009 Log file, useful mostly for debugging
Coll_85900.log 444410 Log file, useful mostly for debugging
Coll_85901.log 452811 Log file, useful mostly for debugging
Coll_85909.log 444408 Log file, useful mostly for debugging
Form_85908.log 1037 Log file, useful mostly for debugging
Tune-8590-2022_Lady_Cunninghams_Strathspey.abc 1004 ABC music file with the extracted tune(s)
Tune-8590-2022_Lady_Cunninghams_Strathspey.ps 40316 PostScript
Tune-8590-2022_Lady_Cunninghams_Strathspey.txt 1004 Plain-text file with the extracted tune(s)
Tune-8590-get.log 5093 Log file, useful mostly for debugging
Tune-85904-get.log 1406 Log file, useful mostly for debugging
These files should be available for 24 hours.