YCL-657/657-24/647 German Clarinets
| YCL-657 | YCL-657-24 | YCL-647 | ||
|---|---|---|---|---|
| Key | Bb | Bb | A | |
| Fingering System | Oehler, 27 keys, 5 rings | Oehler, 24 keys, 5 rings | Oehler, 27 keys, 5 rings | |
| Barrel Length | 54mm, 56mm | 54mm, 56mm | 54mm, 56mm | |
| Toneholes | Straight tone holes with tapered undercut | Straight tone holes with tapered undercut | Straight tone holes with hand-tapered undercut | |
| Thumb-rest | Fixed | Fixed | Fixed | |
| Material | Body | Grenadilla | Grenadilla | Grenadilla |
| Keys | Silver-plated nickel silver | Silver-plated nickel silver | Silver-plated nickel silver | |
| Mouthpiece | M3D | M3D | M3D | |
| Case | Included | Included | Included | |
