THE TUNEGUITAR GUIDE
Understand 7-string Drop A
A dropped bass with a complete standard six above it
A E A D G B E retains the full standard six-string layout above the added A1. The bottom three notes A1, E2 and A2 form a root, fifth and octave. Unlike six-string Drop A, this layout keeps G3, B3 and E4 at the top. Count the targets before using a familiar drop-tuning fingering.
The two low As make a useful check
Strings 7 and 5 are A1 and A2, one octave apart. Check each separately with the microphone, then listen to their relationship. The low string's harmonic can overlap the fifth string, so a strummed result cannot prove both are correct. The experimental six-string strum tool is not a seven-string verification method.
Return to B standard with one deliberate move
Raise only the seventh string by two semitones. If other strings have drifted as the neck or bridge settles, bring them back to their existing targets rather than selecting a different six-string preset. For shared setup links, confirm that all seven string buttons are visible before beginning the next session.
Check the register of every target
| String / course | Note | Hz |
|---|---|---|
| 7 | A1 | 55.00 |
| 6 | E2 | 82.41 |
| 5 | A2 | 110.00 |
| 4 | D3 | 146.83 |
| 3 | G3 | 196.00 |
| 2 | B3 | 246.94 |
| 1 | E4 | 329.63 |
The order follows this preset, not an instruction to rearrange the physical strings. On paired courses, identify the main string and its partner before plucking. A single-note detector cannot prove that two strings sounding together are independently correct.