Learn about how “bent unisons” string bending has been used by the best classic blues-rock guitar players since as early as the late 1960s in the following blog post. With the use of actual examples, this article demonstrates how this technique has been used within blues-rock guitar and how to integrate it into your own guitar playing.
Read the full article here:
GuitarPlayer: The Bluesy Beauty of Bent Unisons
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I’m seeking info for sanctuary reverberation absorbsion material ( panels) and best placement.
There may be apps that do that. You can definitely find spectrum analyzers that will measure ultra low.
Is there an APP that can measure the ultra low frequency levels?