Different scale precedents
No. 506 uses 650 mm for all ten strings, while No. 194 documents 667 mm. Neither is a compulsory scale for every ten-string brief.
Nylon / Instrument family
An extended classical palette, with ten strings in a coherent playing layout.

The playing brief
For repertoire and tunings that call for a wider range. The string set, intended pitches, scale and usable reach are agreed together before the instrument is built.
No. 506 uses 650 mm for all ten strings, while No. 194 documents 667 mm. Neither is a compulsory scale for every ten-string brief.
A ten-string count does not specify the pitches or the musical role of the extra strings. The tuning and the spacing of both hands belong in the brief.
The performance below belongs to ten-string No. 106. It is not a recording of Nos. 506 or 194.
Completed instruments
These photographs, measurements and films belong to the numbered guitars. They are reference instruments, not a fixed specification or a statement of current availability.

No. 506 /

No. 194 /

No. 106 /
Listen to the instrument
The number and title identify the guitar actually heard in each film.
Before you choose
That depends on the intended tuning and the register you want to add. A string count alone does not establish the pitch, tension or response. We review those choices together.
No. Fan frets describe different scale lengths across the strings. ArcFret describes curved fret geometry developed for intonation. Compatibility with a new multi-string design requires individual assessment.
Made for your playing
Tell us what you play, what feels right on your current instrument and what you would change. The specification, price and anticipated timing are agreed before the build begins.
Discuss an instrument