what is sustained in guitar?

Answer 1

Making the note last almost forever after you pluck it or hit it once.

It is generally a part of a 4 step process:

Attack (power strum)
Release (your hand leaves the strings)
Sustain (the sound continues for a long time, especially if you have a Marshall stack and face it with the picks up to add feedback)
Decay (the sustain slowly fades into hiss and background noise).

Answer 2

A sustained note when playing a guitar or any other instrument is adding a certain note not usually connected with a given chord--or extending the duration of a note longer than the notes of a certain chord will last.

One example of a sustained note catching the ear easily is Gsus4. This means you play a regular G major chord but place a finger on a C note, which is the fourth note on the G major scale.

Another example is Csus4. In this case, the F note is emphasized in a regular C major chord. To find a fourth sustained note for any chord, start with the fundamental tone of the chord you're using and, using Do, Re, Mi, and Fa, go up the scale and stop at Fa, the fourth note. Depress that string note with your chord and you'll have a sustained chord.

Try it; you'll like. So do Pop, Country, Blues, and Rock musicians.

Answer 3

sustain this the length of time a note rings out after you hit it.