2009 UTC The name is to be blunt nonsensical No actual 10 string guitarist or authority on this instrument uses this terminology which is entirely s own creation Why the anachronistic classical Neither the 10 stringed harp guitar of the 19th century nor the modern 10 string guitar is an instrument from the Classical period and an acoustic guitar is as little limited to the performance of so called Classical music as an acoustic piano is And what exactly is meant by extended range Extended from what This is assuming that the guitar had a fixed range which is a fallacy considering most of the notable guitarists of the 19th century Sor Carulli Coste Mertz Legnani Manjon etc also wrote for performed on guitars with more than 6 strings many of which had a treble range that was extended beyond the 19th 20th fret that is the norm on today s guitars All in all this is a nonsensical title for an article that should simply be called ten string guitar that that should include only historically significant instruments i e not things like the Marlow 10 string guitar And there should be a separate article for the Yepes 10 string guitar which this article currently simply continues to confuse with unrelated developements that have nothing to do with the primary defining characteristic of the Yepes instrument its singualr tuning which uniquely gives sympathetic string resonance in unison with any note fretted on the treble strings Viktor van Niekerk 05 56 15 March