Is signal the same as frequency?

The frequency of a signal defines the total number of complete cycles of a waveform that are existing per sec. While bandwidth is the range of frequency of signal while transmission thus shows its capacity of data flow. The frequency of a signal is specified as cycles/second .

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What are the 12 pitches in music?

In Western music, there are a total of twelve notes per octave, named A, A#, B, C, C#, D, D#, E, F, F#, G and G# . The sharp notes, or ‘accidentals’, fall on the black keys, while the regular or ‘natural’ notes fall on the white keys. As well as sharps, the black keys can also be flats – ie, Bb, Db, Eb, Gb, and Ab.

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