The YRA‑402B, part of Yamaha’s 400‑series “Ecodear” recorders, is crafted with plant-based TERRAMAC® plastic, providing a tone reminiscent of wood while being more environmentally responsible .
Its arched (curved) windway offers controlled breath resistance and supports expressive articulation and harmonic richness .
Designed in line with the Rottenburgh style, it balances tonal warmth with practical features and is excellent for both classroom use and performance contexts .
Specifications
| Feature | Detail |
|---|---|
| Model Code | B65‑YRA‑402B |
| Key | F (Alto/Treble) |
| Fingering System | Baroque (English standard) |
| Windway | Arched (Rottenburgh style) |
| Tone Holes | Double holes for C–C♯ and D–D♯ |
| Material | Plant-based TERRAMAC® plastic (“Ecodear”) |
| Body Sections | 3-piece assembly (headjoint, middle, footjoint) |
| Tuning Reference | A ≈ 442 Hz |


















