Ten string guitar

Modern/Yepes Ten-String Guitar== http://www.myspace.com/vivanni|title=10-string Guitar Basics|work=Blog Entry|publisher=Viktor van Niekerk}}==After Narciso Yepes had already achieved international fame, he reached the point where the 6-string guitar no longer sufficed for his needs. He was disturbed by the irregularity of acoustic resonance produced by the overtones of its bass strings, vibrating in sympathy with notes played on the fingerboard. Some notes (E, A, D, B) sounded full, enriched by this sympathetic vibration, while others were without the same lustre and sustain. Yepes's idea to correct this imbalance - a guitar with fully chromatic string resonators created in 1963 in collaboration with José Ramirez  - followed a strict musical and scientific logic.
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