This is a multi-part message in MIME format. ---------------------- multipart/related attachment ------=_NextPart_84815C5ABAF209EF376268C8 Saw my first Yamaha GB-1 today. Someone asked for a scale description. I didn't have time to measure anything but here are my observations. It looks just like the GA-1 except, ta daaaaaa, they have replaced the first six tenor bridge strings with wound bichords (B2 to E3). The first two or three plain-wire notes still tune like low-tension, heavy wire. We'll see how it goes for stability as I will be back for the second "Yamaha Bond" tuning in about three months. The temperament area has a steep deck and heavy underfelt sloping to the agraffs so tuning was not quick or fun and, when the strings and felt get dirty I think it's going to be even less fun. There is no troublesome inharmonicity jump across the bass/tenor break, apparently, but a big one from wound strings to plain, just below the temperament. These are some measured Inharmonicity Constants (TuneLab) ... C1 0.631 C2 0.157 A2 0.183 --- Tenor Break --- B2 0.139 C3 0.148 D#3 0.189 --- Plain Wire --- F3 0.399 G3 0.327 C4 0.429 F#4 0.558 C5 0.618 F#5 0.798 C6 2.255 It didn't make a very pretty calculated tuning curve ... But then, it IS a small scale. Voicing would help (clangy bass, Asian treble) but, overall, it has a nice, sweet tone--when in tune--just like the other small Yamahas. I did some experimenting and found that it is one of those pianos that could really benefit from a good aural tuning, with resulting offsets saved in the TuneLab file. Specifically, I'd make the A3-A4 octave slightly wider (which is quieter) then flatten everything south of A4, slightly, to slow down 4ths and 5ths a tad, even out the bass transition and maybe give the bass a little more muscle (after voicing, I think). I didn't think to analyze the treble octaves, double-8vas, and fifths as time was pressing but, overall, the TuneLab tuning sounds more than acceptable and certainly better than most of the crap pianos I tune, but I digress ... Anyway this owner is a play-by-ear, not-very-good player with a tone-deaf husband and I don't do enough aural to be fast at it, so she gets the computed curve, for now. She asked me to play so I gave her some Debussy, Chopin, and Brahms: She loved it and considering that I am a guitarist, not a pianist, I took it as a compliment to the piano and the tuning, rather than the performance. That is my report. Overall? Better than the GA's ... but consider a Kawaii next time. Or better still: Spring for a few more inches of piano -- maybe a Fandrich & Sons -- (I like 'em). Alan Barnard Salem, Missouri ------=_NextPart_84815C5ABAF209EF376268C8 An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/2a/cd/7b/8e/attachment.htm ------=_NextPart_84815C5ABAF209EF376268C8-- ---------------------- multipart/related attachment A non-text attachment was scrubbed... Name: not available Type: image/x-bmp Size: 311315 bytes Desc: display_3.bmp Url : https://www.moypiano.com/ptg/pianotech.php/attachments/65/bb/9d/a1/attachment.bin ---------------------- multipart/related attachment--
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