Pianos

Prepared voicing involves adjusting the hammers to alter the piano's tone, often creating a percussive or dampened sound. Unprepared voicing aims for a balanced and traditional piano timbre.

Soundboard material (typically spruce) directly influences resonance and projection. Higher quality soundboards vibrate more efficiently, producing a louder and more complex tone.

Tuning stability indicates the piano’s resistance to changes in pitch due to temperature and humidity, ensuring consistent performance over time.