"Pop/Jazz" chord symbols

These functions outputs jazz/pop-style chord symbols. There is no universal standard for how to notate such chord symbols, in particular in plain text. The chord() function outputs a chord symbol representation roughly consistent with "standard practices."

Usage

chord(
  x,
  ...,
  Key = NULL,
  transposeArgs = list(),
  parseArgs = list(),
  inPlace = FALSE
)

harte(
  x,
  ...,
  Key = NULL,
  transposeArgs = list(),
  parseArgs = list(),
  inPlace = FALSE
)

Arguments

x

An atomic vector.

The x argument can be any (atomic) vectors

Key

The diatonic key used by the parser, deparser, and transposer.

Defaults to NULL, which is interpreted as C major.

Must be a diatonicSet or something coercable to diatonicSet; must be either length 1 or length(x).

transposeArgs

An optional list of arguments passed to a transpose() call.

Defaults to an empty list().

Must be a list of named arguments to transpose().

parseArgs

An optional list of arguments to the chord parser.

Defaults to an empty list().

Must be a list of named arguments to the chord parser.

inPlace

Should non-chord information be retained in the output string.

Defaults to FALSE.

Must be a singleton logical value: an on/off switch.

Details

For more rigorous, consistent work, we recommend the Harte notation, which is the standard used by MIREX, etc. The harte() function will output standard Harte symbols.

Examples

romanNumerals <- c('2I', '2IV7', '1V', '2vi', '2-VI', '2iio7', '2Vb9')

chord(romanNumerals)
#> [1] "C"      "Fmaj7"  "G"      "Amin"   "Ab"     "Ddim7"  "Gb7/Fb"
chord(romanNumerals, Key = 'A:')
#> [1] "A"      "Dmaj7"  "E"      "F#min"  "F"      "Bdim7"  "Eb7/Db"

if (FALSE) {
B075 <- readHumdrum(humdrumRroot, "HumdrumData/BeethovenVariations/B075_00_05_a.krn")
with(B075[[ , 2]], chord(Token))
}