Re: drum-staff metronome click + bell ?

[Aaron Hill]

On 2020-12-12 12:52 pm, Silas S. Brown wrote:
> Hi, I'm trying to add a metronome 'click track' to a MIDI
> that is to be played on a Casio CDP-130 which has a limited
> range of instruments (it cannot do woodblock for example).
>
> The General MIDI percussion standard maps "metronome click"
> and "metronome bell" to key numbers 33 and 34 in channel 10,
> but Lilypond's \drums does not seem to have any note commands
> to produce these key numbers.  I can do: \drums { trim4 cl cl cl }
> to use muted triangle and claves (which are available on the
> CDP, as it uses them for button-press sounds), but this doesn't
> sound as good as the CDP's built-in metronome sound which
> uses key numbers 33 and 34.

%%%%
\version "2.20.0"

% Define new pitch names.
drumPitchNames.metronomeclick = #'metronomeclick
drumPitchNames.metronomebell = #'metronomebell

% Define shorthands for the pitch names.
drumPitchNames.mc = #'metronomeclick
drumPitchNames.mb = #'metronomebell

% Associate a pitch with the name.
midiDrumPitches.metronomeclick = ##{ a,, #}
midiDrumPitches.metronomebell = ##{ ais,, #}

% Regenerate the hash table.
\midi { \context { \Score
  drumPitchTable = #(alist->hash-table midiDrumPitches)
} }

\score {
  \drums { \repeat unfold 8 { mb4 mc mc mc } }
  \midi { \tempo 4 = 90 }
}
%%%%


-- Aaron Hill