The Mellon catalogue records the survival of a piece of alchemical music - the Antiphona by Johannes de Teschen.
This is in MS Mellon 5 created round about 1400, in four pages, folios 2r - 3v.
Its apparently a through-composed, monodic song in the Phrygian mode without formal structure, written in Hufnagelschrift (horseshoe neumes) on red, five-line staves, F and C indicated on the second and fourth lines from the bottom of each staff, respectively, the text written in a single broad line below the staff. Seven staves and seven text lines to each page. The music is independent of liturgical sources.
I have put up a page on the alchemy web site.
http://www.alchemywebsite.com/alchemical_music.html
Here is the opening folio.Attached Image (viewed 1910 times):

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