Create a sequence from pitch notation

Create a noteworthy string of a sequence of consecutive pitches.

Usage

pitch_seq(x, y, key = NULL, scale = NULL, format = c("space", "vector"))

Arguments

x: character, valid pitch notation, e.g., "a2" or "a,".
y: character, same as x for the sequence x:y. If a number, the length of the sequence from x and the sign of y determines the direction.
key: character, key signature for a diatonic sequence. key = NULL (default) results in a chromatic sequence.
scale: character, if you want to use a different scale in conjunction with the key/root note, you can provide it, e.g., scale = "harmonic minor". Ignored if key = NULL.
format: character, the timestep delimiter format, "space" or "vector".

Value

noteworthy

Details

Note that all pitches resulting from the defined sequence must be in the semitone range 0-131 or an error is thrown.

If not using a chromatic sequence and x (or y if also a pitch) is not part of the key signature or scale, the sequence is internally bound. See examples.

Format of accidentals in the result is prioritized by the scale and key, the key when no scale is given, then x (and y if also a pitch), and finally defaults to flats if ambiguous.

Examples

# chromatic sequence (default)
pitch_seq("a,", 13)
#> <Noteworthy string>
#>   Format: space-delimited time
#>   Values: a, b_, b, c d_ d e_ e f g_ g a_ a
pitch_seq("c5", -2)
#> <Noteworthy string>
#>   Format: space-delimited time
#>   Values: c5 b4
pitch_seq("c", "b")
#> <Noteworthy string>
#>   Format: space-delimited time
#>   Values: c d_ d e_ e f g_ g a_ a b_ b

# diatonic sequence
pitch_seq("c", 8, key = "c")
#> <Noteworthy string>
#>   Format: space-delimited time
#>   Values: c d e f g a b c'
pitch_seq("c", 8, "am")
#> <Noteworthy string>
#>   Format: space-delimited time
#>   Values: c d e f g a b c'
pitch_seq("c#,", "a#'", "am")
#> <Noteworthy string>
#>   Format: space-delimited time
#>   Values: d, e, f, g, a, b, c d e f g a b c' d' e' f' g' a'

# combine with alternative scale
pitch_seq("a", 8, "am", "harmonic minor")
#> <Noteworthy string>
#>   Format: space-delimited time
#>   Values: a b c' d' e' f' g#' a'