Key layouts majorfor all possible major scales available on the 3 row instrumentI use a 3-row instrument in the scale of D-G-C as an example, but these patterns are usable on all instruments with different scales. Only the scale names have to be replaced if used on different scales. Play on the following rows as the main row for playing: I recommend to start exercising on the middle row, then go on with the inner 3rd row and then proceed with the outer 1st row. I also recommend to play or try to play the same tune in high and in low position as well, this way you can find the best sounding position for the respective tune. Now the key layouts:Playing in the 2nd row, G-majorPush, scale 2nd row. All seven notes of the diatonic scale are present in three different octaves (positions on the key layout). The most important keys are printed bold. The Gleichton is underlined.
Alternating bass and double dominant (DD) is possible. In combination with the above the respective bass keys:
Pull, scale of the middle row. In low position the 3rd scale note is missing, in the high position the 5th note is missing too. If these notes are needed in the tune one has to change to pull direction for these notes. If this is done the bass position (fingers) has to be changed too.
In combination with the above, the respective bass keys:
Playing in the 1st row, D-majorPush, scale of the 1st row. The most important keys are printed bold. The 7th note of the scale is missing, If this note is needed in the tune one has to change to pull direction for these notes. If this is done the bass position (fingers) has to be changed too. Experienced musicians change the whole measure to pull direction. And then in low position the 2nd note is missing too.
Alternating bass is possible, double dominant (DD) is reachable but on different position in the second row. In combination with the above, the respective bass keys:
Pull, scale 1st row. All scale specific notes are present, but a Gleichton is not available. The respective 5th note of this scale is on the second row.
In combination with the above the respective bass keys:
Playing in the 3rd row, C-majorPush, scale on 3rd row. The most important keys are printed bold. In all three positions the 4th note of the scale is missing. Is only available in pull direction without the needed bass keys. Very often this key is added as accidental with other missing notes.
Alternating bass and double dominant is possible, 4th step is reachable on Pull: In combination with the above the respective bass keys.
Pull, scale 3rd row. In high position the important scale note 5 is missing and is only reachable on push direction or with an auxiliary key.
In combination with the above the respective bass keys:
more scales (F-major, A-major)These scales are practically not playable to some extent and are incomplete in every position.
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