Yamaha PSR S670 Accordion
17:04
Yamaha PSR S-670 sound demo (voices and styles)
6:49
Présentation du Yamaha PSR-S670 par Arnaud Delaunay
56:19
DEMO YAMAHA PSR SX920 & SX720 Martin Harris and more demonstrators
59:46
PACK MEU SHOW 2.1 - YAMAHA S670 - 160 RITMOS ATUALIZADO By Thyago Rybeiro "Leia a Descrição"
14:22
Yamaha PSR-SX600 Sound Comparison and Demonstration
23:27
Yamaha PSR-S910 original demo sounds
26:47
YAMAHA PSR-S670 Demo & Review - Sound & Style [English Captions]
15:09