The Electronic Sackbut, the world’s first voltage-controlled synthesiser at Studio Bell, the National Music Centre at Calgary in Alberta, Canada

The Electronic Sackbut, the world’s first voltage-controlled synthesiser at Studio Bell, the National Music Centre at Calgary in Alberta, Canada

The Electronic Sackbut, the world’s first voltage-controlled synthesiser.

The Electronic Sackbut, the world’s first voltage-controlled synthesiser.

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