Tone sounds

Signal 900 hz (1 min, -24db)
2665 811
Sawtooth signal from 20hz to 20000hz
2662 588
Sound 440 hertz (a) for tuning viola, viola
2660 889
918. 5 hertz signal
2627 725
Sound 41. 20 hertz (e) for bass tuning
2595 675
Sound 293. 66 hertz (d) for violin tuning
2511 578
To hide censorship (short, 1 sec)
369 4

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