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Technique: Piano Accordion for The Recycled Muso

Robin - aka - foolestroupe - The Author of the compliation.

Estonian Teppo-type button accordeon keyboard layout.
Unique and pure estonian origin 3 or 4 row button accordeon keyboard system. Each row based mainly on bisonoric mouth organ layout. 3 rows tuned correspondingly in base, dominant and subdominant key. 4th row tuned a quart higher than the subdominant row. (Copied from anon 217.159.183.198 comment on Category talk:Keyboard systems --Lowland Boxman 21:34, 11 December 2006 (UTC)