Guitar chords

There are two types of spectrum analyzers: swept-tuned and time-sequence.

Oscilloscopes are used to observe the change of electrical signal over time.

Use of spectrum analyzer provides a plot and trace of signal amplitude in the frequency domain.

Chords contain tierces (thirds).

In 1897 german physicist K.F.Braun engineered the first oscilloscope.

There are two type of chords- consonant chords and disonant chords.

Some artists use oscilloscope waveforms to make certain patterns. They are able to create eye-catching mandalas or floral shap...

Drum sounds can't be compononents of a chord. Chords can only consist of certain notes.

Tuning fork was invented by lute musician.

Tuning fork is a tool used to pitch musical instruments.

Nowadays there are many kinds of spectrum analyzers: stationary, portable, handhled and networked.

Since 1939 binding sound for pitching musical instruments is in 440Hz frequency. Formerly it was 432Hz.

Laryngologists use tuning forks in 432Hz becouse that's the frequency human body transcribes the best.

Following the discovery of fast Fourier transform, in 1962 the first spectrum analyzer was engineered.

Chord consists of minimum three diffrent notes.

The first of real time computer games was made for oscilloscope. "Tennis for two" was programmed by William Higinbotham in 1958....