Original G series was developed by Mr. Ohashi at Yamaha, who learned piano technology from Bechstein people. Mr. Ohashi later spun out and established his own piano company called Diapason. Both G series instruments and Diapason pianos are said to have Bechstein tone while C series is more similar to Steinway feature-wise. <div>On 6/9/06, Pianoman <<a href="mailto:pianoman@accessus.net">pianoman@accessus.net</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">For a number of years there were at the same time G1,C1,G2,C2,G3,C3. Originally the G series did not have duplex scales where the C series did. James James Grebe   Piano Tuning & Repair   Member of M.P.T. R.P.T. of the P.T.G. for over 30 years.   "Member of the Year" in 1989 Creator of Handsome Hardwood Caster Cups, Piano Benches, Writing Instruments,Table Timepieces (314) 845-8282   1526 Raspberry Lane   Arnold, MO 63010 Researcher of St. Louis Theatre History BECOME WHAT YOU BELIEVE! <a href="mailto:pianoman@accessus.net">pianoman@accessus.net </a> </blockquote></div>