How to Tune to 55503 (CGDAAC)
Known by its fret-interval label '55503', CGDAAC stacks fifths from a low C up to a doubled A, with a C on top. The unison A strings ring together for a shimmering drone, while the fifth-based low end gives a huge, open foundation for adventurous fingerstyle.
| String | Note | Frequency |
|---|---|---|
| String 6 | C2 | 65.41 Hz |
| String 5 | G2 | 98.00 Hz |
| String 4 | D3 | 146.83 Hz |
| String 3 | A3 | 220.00 Hz |
| String 2 | A3 | 220.00 Hz |
| String 1 | C4 | 261.63 Hz |
String Tension & Setup Tips
Recommended Gauge:The low E drops to C and the A to G, so heavier bottom strings help. The doubled A's and top C sit near or slightly below standard tension.
Frequently Asked Questions
How do I tune to 55503 (CGDAAC)?
From standard tuning (EADGBE), retune each string low to high: 6th E→C, 5th A→G, 4th D (unchanged), 3rd G→A, 2nd B→A, 1st E→C. Match each string to its exact Hz using the interactive tuner above.
What is special about the 55503 tuning?
Its stacked fifths and unison A strings create a wide, ringing drone with a bright shimmer on top, giving big open textures favoured for experimental fingerstyle.