Cuban born pianist who lives in Spain Omar Sosa.
His website has got a comment on our piano pickup.

Yamahiko is a brand of microphone pick-up for musical instruments manufactured by Sonaresearch Company of Japan.
Characteristics of the Yamahikopiano pick-up system include:

1. High selectivity on music sound vibrations, without picking up other noises

2. Easy to turn on and turn off quickly

3. Force mode pick-up system realizes high fidelity and high signal to noise ratio

Omar Sosa during his tour to Japan in 2013, We received the message.