pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-523-Humahus-G-10-1.ps) >>/Users/jc/w/tmp/Tune-523-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/session/Oivan_Ilo/Humahus/Humahus-G-10-1.abc

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

[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Coll_52376.log 829332 Log file, useful mostly for debugging
Coll_52393.log 2287216 Log file, useful mostly for debugging
Find_52302.log 1527 Log file, useful mostly for debugging
Find_52310.log 1647 Log file, useful mostly for debugging
Tune-523-Humahus-G-10-1.abc 519 ABC music file with the extracted tune(s)
Tune-523-Humahus-G-10-1.ps 33421 PostScript
Tune-523-Humahus-G-10-1.txt 519 Plain-text file with the extracted tune(s)
Tune-523-get.log 4557 Log file, useful mostly for debugging
Tune-5230-20471_Waterloo_Dance.abc 768 ABC music file with the extracted tune(s)
Tune-5230-20471_Waterloo_Dance.pdf 15829 Portable Data Format
Tune-5230-20471_Waterloo_Dance.ps 36922 PostScript
Tune-5230-20471_Waterloo_Dance.txt 768 Plain-text file with the extracted tune(s)
Tune-5230-get.log 11486 Log file, useful mostly for debugging
Tune-52301-get.log 4737 Log file, useful mostly for debugging
Tune-52304-get.log 3671 Log file, useful mostly for debugging
Tune-52307-DanielWright_CCCCD.abc 156 ABC music file with the extracted tune(s)
Tune-52307-DanielWright_CCCCD.ps 6 PostScript
Tune-52307-DanielWright_CCCCD.txt 156 Plain-text file with the extracted tune(s)
Tune-52307-get.log 4167 Log file, useful mostly for debugging
Tune-52309-get.log 3860 Log file, useful mostly for debugging
Tune-52311-20131_Volunteers_March.abc 1468 ABC music file with the extracted tune(s)
Tune-52311-20131_Volunteers_March.pdf 26728 Portable Data Format
Tune-52311-20131_Volunteers_March.ps 43070 PostScript
Tune-52311-20131_Volunteers_March.txt 1468 Plain-text file with the extracted tune(s)
Tune-52311-get.log 5841 Log file, useful mostly for debugging
Tune-52313-get.log 5801 Log file, useful mostly for debugging
Tune-52315-24AmericanCountryDances_1785_Cantelo.abc 173 ABC music file with the extracted tune(s)
Tune-52315-24AmericanCountryDances_1785_Cantelo.ps 6 PostScript
Tune-52315-24AmericanCountryDances_1785_Cantelo.txt 173 Plain-text file with the extracted tune(s)
Tune-52315-get.log 4541 Log file, useful mostly for debugging
Tune-52316-JohnFrench.abc 147 ABC music file with the extracted tune(s)
Tune-52316-JohnFrench.txt 147 Plain-text file with the extracted tune(s)
Tune-52316-get.log 3184 Log file, useful mostly for debugging
Tune-52319-get.log 1433 Log file, useful mostly for debugging
Tune-52320-get.log 5687 Log file, useful mostly for debugging
Tune-52323-get.log 3557 Log file, useful mostly for debugging
Tune-5233-JennysBabyReel-001.svg 20945 Scalable Vector Graphics format
Tune-5233-JennysBabyReel.abc 493 ABC music file with the extracted tune(s)
Tune-5233-JennysBabyReel.txt 493 Plain-text file with the extracted tune(s)
Tune-5233-get.log 4200 Log file, useful mostly for debugging
Tune-52331-get.log 5871 Log file, useful mostly for debugging
Tune-52333-get.log 5982 Log file, useful mostly for debugging
Tune-52334-get.log 5966 Log file, useful mostly for debugging
Tune-52339-get.log 4240 Log file, useful mostly for debugging
Tune-52347-Pringle.abc 144 ABC music file with the extracted tune(s)
Tune-52347-Pringle.ps 6 PostScript
Tune-52347-Pringle.txt 144 Plain-text file with the extracted tune(s)
Tune-52347-get.log 4049 Log file, useful mostly for debugging
Tune-52349-EliasHowe_MusiciansCompanionP1-1842-V2.abc 175 ABC music file with the extracted tune(s)
Tune-52349-EliasHowe_MusiciansCompanionP1-1842-V2.pdf 2217 Portable Data Format
Tune-52349-EliasHowe_MusiciansCompanionP1-1842-V2.ps 6 PostScript
Tune-52349-EliasHowe_MusiciansCompanionP1-1842-V2.txt 175 Plain-text file with the extracted tune(s)
Tune-52349-Kohlers.abc 147 ABC music file with the extracted tune(s)
Tune-52349-Kohlers.ps 6 PostScript
Tune-52349-Kohlers.txt 147 Plain-text file with the extracted tune(s)
Tune-52349-get.log 9759 Log file, useful mostly for debugging
Tune-52350-24FavouriteDances_1783_Straight.abc 168 ABC music file with the extracted tune(s)
Tune-52350-24FavouriteDances_1783_Straight.txt 168 Plain-text file with the extracted tune(s)
Tune-52350-get.log 3564 Log file, useful mostly for debugging
Tune-52351-24CountryDances_1765_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-52351-24CountryDances_1765_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-52351-get.log 3526 Log file, useful mostly for debugging
Tune-52353-get.log 6011 Log file, useful mostly for debugging
Tune-52355-get.log 5583 Log file, useful mostly for debugging
Tune-52357-JamesOswald_CPC-abc2.abc 157 ABC music file with the extracted tune(s)
Tune-52357-JamesOswald_CPC-abc2.txt 157 Plain-text file with the extracted tune(s)
Tune-52357-get.log 3368 Log file, useful mostly for debugging
Tune-52359-get.log 3624 Log file, useful mostly for debugging
Tune-5236-get.log 5657 Log file, useful mostly for debugging
Tune-52361-get.log 4648 Log file, useful mostly for debugging
Tune-52363-MoF.abc 140 ABC music file with the extracted tune(s)
Tune-52363-MoF.pdf 2217 Portable Data Format
Tune-52363-MoF.ps 6 PostScript
Tune-52363-MoF.txt 140 Plain-text file with the extracted tune(s)
Tune-52363-get.log 4681 Log file, useful mostly for debugging
Tune-52365-get.log 4943 Log file, useful mostly for debugging
Tune-52366-get.log 3524 Log file, useful mostly for debugging
Tune-5237-get.log 5412 Log file, useful mostly for debugging
Tune-52370-Garryowen_with_variations_.abc 164 ABC music file with the extracted tune(s)
Tune-52370-Garryowen_with_variations_.txt 164 Plain-text file with the extracted tune(s)
Tune-52370-get.log 3480 Log file, useful mostly for debugging
Tune-52375-get.log 3098 Log file, useful mostly for debugging
Tune-5238-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.abc 190 ABC music file with the extracted tune(s)
Tune-5238-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.pdf 2217 Portable Data Format
Tune-5238-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.ps 6 PostScript
Tune-5238-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.txt 190 Plain-text file with the extracted tune(s)
Tune-5238-get.log 11017 Log file, useful mostly for debugging
Tune-52386-get.log 4628 Log file, useful mostly for debugging
Tune-52387-RobertBremner_CSRCD2.abc 160 ABC music file with the extracted tune(s)
Tune-52387-RobertBremner_CSRCD2.pdf 2217 Portable Data Format
Tune-52387-RobertBremner_CSRCD2.ps 6 PostScript
Tune-52387-RobertBremner_CSRCD2.txt 160 Plain-text file with the extracted tune(s)
Tune-52387-get.log 5188 Log file, useful mostly for debugging
Tune-52394-get.log 25496 Log file, useful mostly for debugging
Tune-52395-JamesJohnson_ScotsMusicalMuseumV4-V2.abc 173 ABC music file with the extracted tune(s)
Tune-52395-JamesJohnson_ScotsMusicalMuseumV4-V2.txt 173 Plain-text file with the extracted tune(s)
Tune-52395-get.log 3654 Log file, useful mostly for debugging
Tune-52396-HaandMeDoonDaFiddle.abc 157 ABC music file with the extracted tune(s)
Tune-52396-HaandMeDoonDaFiddle.txt 157 Plain-text file with the extracted tune(s)
Tune-52396-get.log 3354 Log file, useful mostly for debugging
These files should be available for 24 hours.