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This arrangement is different in that it utiilizes only 2 sizes of melodica: the Suzuki Pro 37 Alto and the B-24 Bass. Aside from some octave shifting in the bass parts, there wasn’t any transcription necessary to fit within these ranges. The parts are covered as follows:
Organ solo: Alto melodica
Organ [...]

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I had originally intended to use an Andes 25 F flute melodica for the recorder part, but it’s an octave too high, so I ended up with the minor sin of using the instrument that was intended! This recording introduces 4 new melodicas into the mix, all produced by Suzuki. The distribution of parts is [...]

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All parts played by one melodica.
Full quality MP3 below:

Music by J.S. Bach.. More Bach on Melodica: [link]

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The original parts are covered like this:
Flute = Alto Melodica
Ist vln = Tenor Recorder
2nd vln = Tenor Recorder
Vla = Clarinet
Cello = Contrabass Recorder
Bass = Piano with mute
You can listen to the full MP3 below.

Music by J.S. Bach. More Bach on Melodica: [link]

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