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Copedent
From Wikipedia, the free encyclopedia
Copedent is a table used to describe the tuning and pedal arrangement on a pedal steel guitar. The term was coined by Tom Bradshaw (musician) in an early 1970's article in Guitar Player magazine. It is short for "ChOrd PEDal arrangemENT". According to Tom Bradshaw, the term is pronounced "co-PEE-dent".
Copedant is an erroneous, and unfortunate alternate spelling.
In an example copedent table/graph below that was provided by GFI Musical Products, the first pedal, "P1", raises the pitch of strings 5 and 10 from "B" to "C#", etc.
|
String
|
Gauge
|
Pitch
|
P1
|
P2
|
P3
|
P4
|
P5
|
P6
|
P7
|
P8
|
LKL
|
V
|
LKR
|
RKL
|
RKR
|
|
1
|
.012p
|
F#
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
G#
|
-
|
|
2
|
.015p
|
D#
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
E
|
D/C#
|
|
3
|
.011p
|
G#
|
-
|
A
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
4
|
.014p
|
E
|
-
|
-
|
F#
|
-
|
-
|
-
|
-
|
-
|
F
|
-
|
D#
|
-
|
-
|
|
5
|
.018p
|
B
|
C#
|
-
|
C#
|
-
|
-
|
-
|
-
|
-
|
-
|
A#
|
-
|
-
|
-
|
|
6
|
.022p
|
G#
|
-
|
A
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
F#
|
-
|
|
7
|
.026w
|
F#
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
8
|
.030w
|
E
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
F
|
-
|
D#
|
-
|
-
|
|
9
|
.034w
|
D
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
C#
|
|
10
|
.038w
|
B
|
C#
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
A#
|
-
|
-
|
-
|
Another common format shows changes in half-steps, rather than as specific musical notes created by use of the instrument's pedals or knee levers. Also included in the copedent are the gauges of the strings used by this particular player:
| universal configuration | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LKL | LKV | LKR | RKL | RKR | ||||||||||||||
| « | » | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | « | » | |||||||
| F# | ## | F# | .013 | |||||||||||||||
| Eb | b/bb | Eb | .017 | |||||||||||||||
| G# | # | G# | .011 | |||||||||||||||
| E | ## | # | b | # | E | .013 | ||||||||||||
| B | b | ## | ## | bb | ## | B | .017 | |||||||||||
| G# | # | bb | ## | G# | .022 p | |||||||||||||
| F# | # | b | F# | .026 w | ||||||||||||||
| E | bb | b | # | E | .030 | |||||||||||||
| B | ### | ## | bb | # | B | .038 | ||||||||||||
| G# | # | G# | .046 | |||||||||||||||
| E | # | b | E | .056 | ||||||||||||||
| B | bb | ## | bbb | B | .070 | |||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||||||||||
- GFI Musical Products who produced the table above.
- Steel Guitar Forum.
- Article 005642 on the origin, meaning, and pronunciation of codepent, including arbitration by Tom Bradshaw himself.
- Particular codepents:
- 12 string copedent used by Terry Downs.
- Basic C6th 10 string copedent.
- C6th 11 string copedent used by Jeff Lampert.
- GFI copedents: C9th 10 string 8 pedal, E6th 10 string 8 pedal, C9th 10 string 3 pedal, universal 12 string 7 pedal.
- Steel Guitar Tunings at Bobby Lee's website.
- Copedent calculator for 10 string C6th or E9th setups.
- Discussion of mean tone copedents by Bobby Lee.