FIELD MANUAL 04 / TUNING WORKFLOW
Switching from Drop D to Drop C: A Six-String Checklist
If your guitar is already in Drop D, getting to Drop C means lowering every string by a whole step. Lowering only the sixth string from D to C leaves C A D G B E, which is a different tuning. Write down the starting point before you turn a peg.
Make a six-line change sheet
Read these pairs from the thickest string to the thinnest. The octave numbers use scientific pitch notation, so the two C targets are deliberately different.
| String | Start | Target |
|---|---|---|
| 6 | D2 | C2 |
| 5 | A2 | G2 |
| 4 | D3 | C3 |
| 3 | G3 | F3 |
| 2 | B3 | A3 |
| 1 | E4 | D4 |
Each arrow is two semitones downward. Compared with standard E A D G B E, the sixth string has moved down four semitones in total and the other five have moved down two. Compared with your actual starting point, Drop D, all six move equally.
Make one pass, then check the whole set again
Remove a capo and stop any pitch-shifting effect. Use a clean input and a tuner that can show the target you need. Start with string 6 and work toward string 1 so you can follow the change sheet without losing your place. This order is a checklist convention, not a claim that other orders are wrong.
Pluck one open string while muting the others. Adjust toward its new target, then move to the next string. If the note feels or sounds unexpectedly high, pause and verify the selected string and target before continuing. Do not judge the whole tuning from one familiar letter.
After all six changes, return to string 6 and check every open string again. Make small corrections and repeat as necessary. Record the completed tuning as C G C F A D. A floating bridge can make repeated tuning changes more involved; follow your bridge maker’s instructions rather than changing hardware adjustments just to finish this checklist.
Check musical behavior separately
The new tuning keeps the same intervals between strings as Drop D. A riff played at the same fret numbers therefore sounds a whole step lower. Its fingering survives, but its concert pitches change. Playing it over the original backing track without transposing something will not preserve the original harmony.
Use a short passage you already know to check feel and fretted notes after the open-string pass. The same strings will feel less taut at the lower pitch. Persistent buzzing, poor fretted intonation or an unusable feel calls for evaluating the setup, not endless open-string retuning. This checklist does not prescribe a universal string set or a truss-rod adjustment.
Write the return route before the next session
To return from Drop C to Drop D, raise all six strings a whole step: C G C F A D becomes D A D G B E. If the destination is standard tuning, that is a different final step: raise string 6 again from D2 to E2. Check the entire set after either change.
A useful practice note contains four items: current tuning, intended tuning, capo position and any pitch effect. That small record prevents next session’s starting assumption from undoing today’s work.
Going back? Open the Drop D tuner after raising all six strings a whole step.
Sources & method
Disclosure: I maintain Drop Tuner. This article was prepared with AI assistance; the tuning relationships below were checked against published references and note calculations. It is a new workflow guide, not a report of hands-on guitar testing.
Fender: Drop D tuning; Ubisoft: Drop C tuning. Targets use scientific pitch notation and equal-tempered semitone relationships.
First published on Substack on November 1, 2026; this edition adds site navigation and reference formatting.
Drop Tuner remains a public beta. Real-guitar microphone checks and physical iOS/Android validation remain pending. See the method and testing limits.