Check the listing for details. 'Ear'idescent Nightingale Autoharp (original design - prototype - no 5/7). Color: Multicolor, Condition: Used. Listed at 550.00 USD. Signed prototype no. 5 of 7 of a completely new autoharp like musical instrument used by the artist/seller in design development. Designed to be a beautiful sounding and easy to play functional instrument as well as to be hung on a wall as a unique, one of a kind, original piece of "musical folk art". Recommended for those with some playing experience. 1 key playable at a time with guitar tuners (the adjunct key is easily playable by re-tuning 2 strings). Many other keys playable dependent upon the position of the moveable bridge. User's Guide included. Overall dimensions: length = 31.5 in.; depth = 5 in.; width at top 10 in. and at the bottom 6.5 in. Wt. 4.5 lbs.Deep body and thin soundboard result in a resonate guitar like sound. Held upright, with chord bars pushed down at the end (similar to the old Oscar Schmidt 'Guitaro'), or on the lap as with a traditional autoharp, or slung with a strap over the shoulder like a guitar. { 'Ear'- idescent = a new word to describe a musical instrument specifically designed so that in the standard playing position one's ear comfortably rests against the sound body resulting in a truly ethereal sound sensation.} 12 chord bars set up to play in the keys of C or F (re-tune 2 strings). Moveable bridge facilitates play in the keys of D or G, Eb or Ab, and E or A. Interchangeable chord guides are used to interpret the chords produced by the chord bars with the bridge in various playable key positions. The chords playable in the key of C bridge position for example are: Csus4, Bdim, Csus2, F, Dm, C, Am, G, Em, G7, Fj7 and Cj7. Re-tune 2 strings and the key of F chords become: Csus4, Bb, Csus2, F, Dm, C, Am, Gm, Edim, Gm7, Ej7 and C7. With the bridge in the key of D position, the playable chords become: Dsus4, C#dim, Dsus2, G, Em, D, Bm, A, F#m, A7, Gj7 and Dj7. Re-tune 2 strings and the key of G chords become: Dsus4, C, Dsus2, G, Em, D, Bm, Am, F#dim, Am7, F#j7 and D7. 14 common steel guitar strings ranging in size from 46 wound to 10 plain and tuning from c3 to a4. Please visit Autoharp.net and YouTube for more details on Nightingale Autoharps. 25% of all proceeds will be used to save homelands for wild things all over the earth, e.g., giraffes, zebras, panthers, tigers, frogs, etc., etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .