The Trombone Guide Machine is a beat track player that

has soundtrack accompaniment to many of the exercises available for free on tromboneguide.com . The tracks can be streamed from our Patreon page for any patron above the $10/month rate.

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Here is a sample track, which plays along with 8 Count Long tones from B flat down to E natural, chromatically descending from 1st to 7th position. There is a 4 bar intro to begin.