![]() Stretched-octave tunings account for this by elongating the octaves (2.1:1, for example) to reduce beating between notes and produce an ear-pleasing sound. Stretched-octave tuning modes for pianos and percussionĮqual temperament tuning can have ill effects on smaller pianos due to a phenomenon called inharmonicity, in which the inflexibility of steel piano strings can cause higher-order harmonics to be sharp by as much as a perfect fifth. So whether you’re double-tracking guitars in the studio or tuning band instruments before a performance, the AutoStrobe 490ST has you covered for the most demanding tuning applications. The AutoStrobe 490ST is one of the most powerful strobe tuners on the market, boasting an 8-octave range and accuracy within 1/1000 of a semitone (☐.1 cents). With nine stretched-octave factory presets and 31 custom user profiles, the Peterson AutoStrobe 490ST makes it possible to tune uprights and concert grands to mallet instruments and electric pianos from the comfort of your own home. 1-cent Accuracy, Built-in Microphone, Mutable Throughputs, and 9 Factory (31 Programmable) Stretch-octave Tuning Modes Peterson Model 490ST AutoStrobe Tuner with Stretch TuningĨ-octave Desktop Stroboscopic Tuner, with. This was his, it’s been checked out and it’s working properly.įor those interested, extended details follow. My dad repaired all types of pianos and guitars, was an avid musician all around.
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