Applying the Tetrachord concept to Scales?

[bobsguitars09]

How would one apply the Tetrachord concept to Scale and Mode shapes?

in fours? so does that mean you could go C D E F and then D E F G.... ?
any ideas?

[BigDaddyLoveHandles]

What's your definition of a tetrachord?

[bobsguitars09]

A series of three intervals filling in the interval of a perfect fourth? My understanding is that the notes C D E F would be a tetrachord? same with D E F G? and E F G A? am I wrong? not sure now.

[bako]

4 note scale fragments. Put them together and what do you get?

Major Scale

1 2 3 4
1 2 b3 4
1 b2 b3 4
1 2 3 #4

Melodic Minor

1 2 b3 4
1 b2 b3 4
1 2 3 #4
1 b2 b3 b4

Harmonic Minor

1 2 b3 4
1 b2 b3 4
1 2 3 4
1 2 b3 #4
1 b2 3 4
1 #2 3 #4
1 b2 b3 b4

Harmonic Major

1 2 3 4
1 2 b3 4
1 b2 b3 b4
1 2 b3 #4
1 b2 3 4
1 #2 3 #4
1 b2 b3 4

Diminished

1 2 b3 4
1 b2 b3 b4

Whole Tone

1 2 3 #4

[whatswisdom]

"A tetrachord is a series of four notes having a pattern of Whole Step, Whole Step, Half Step. The notes of a tetrachord must be in alphabetical order! They also must have this pattern!" - The Complete Book of Scales, Chords, Arpeggios & Cadences, by Willard A. Palmer, et al.