| Length / | 718mm | ||
| Length of strings / | 435mm | ||
| Sound board / | German pine, American cedar | ||
| Back & side / | Jacaranda, Rosewood | ||
| Fingerboard / | Ebony | ||
| Neck / | Mahogany | ||
| Coating / | Urethane | ||
| Price (ex-tax) / | NA-6 | 60,000 | Yen |
| NA-10 | 100,000 | Yen | |
| NA-15 | 150,000 | Yen | |
| NA-20 | 200,000 | Yen | |
| NA-30 | 300,000 | Yen | |
| NA-50 | 500,000 | Yen |
The alto guitar is tuned a 5th higher than the prime guitar. The short scale makes it possible to play high technique music. It is the most popular guitar in the guitar orchestra. The light and clear sound is suitable for playing various music such as Renaissance, baroque and contemporary. Now, not only craftsmen in Japan, but world famous craftsmen such as Ramirez and Contreras in Spain, P. Fischer in U.K. manufacture the alto guitar for the Niibori group.
