Because the stretch of octaves is perceived and not calculated, the tuner establishes which octave requirements kind of octave stretching "by ear". Very good tuning involves compromise among tonal brilliance, accurate intonation, and an consciousness of gradation of timbre in the compass of your instrument. The title of this modification https://dallaslalvf.vblogetin.com/36486754/the-2-minute-rule-for-piano-tuning-service