Clave is a midi click-track generator. It generates single-track single-channel midi file with a customizable click pattern.
Note: click tracks are percussion in their nature. Because of this clave does not generate note off events (only note on).
A lot of pregenerated tracks are available in tracks folder.
cargo install clave
By default Clave generates 1000 beats of 120bpm 4/4 clicks:
clave --out 44_120.mid
You can use command line arguments to customize the track:
-b, --bpm <BPM> Track tempo (beats per minute) [default: 120]
--channel <CHANNEL> Midi channel [default: 10]
--beats <BEATS> Track length in number of beats [default: 1000]
--vel <VEL> Default note velocity [default: 63]
--acc-vel <ACC_VEL> Accented note velocity [default: 94]
--ghost-vel <GHOST_VEL> Ghost note velocity [default: 31]
--subs <SUBS> Number of subdivisions in a pattern [default: 1]
-p, --pattern <PATTERN> Click pattern [default: m>mmm]
You can use --pattern together with --subs to create
more sophisticated click patterns:
- the pattern consists of pattern items optionally separated by spaces
- each pattern item consists of the note:
m- metronome click (32)c- clave click (75)b- bass drum (35)s- snare (38)h- closed hi-hat (42)XXorXXX- decimal number of the percussion key (https://en.wikipedia.org/wiki/General_MIDI#Percussion)r- rest
- and optional volume modifier:
>- accented note,- ghost note
- multiple notes can be played as a chord simultaneosly by surrounding them with
().
Default pattern is m>mmm which corresponds to 4/4
metronome click with accented first beat.
| Description | Subs | Pattern |
|---|---|---|
| 4/4 with ghost 8th | 2 | "m>m,mm,mm,mm," |
| Son clave 3-2 | 2 | "crrcrrcrrrcrcrrr" |
| Son clave 2-3 | 2 | "rrcrcrrrcrrcrrcr" |
| Rumba clave 3-2 | 2 | "crrcrrrcrrcrcrrr" |
| Rumba clave 2-3 | 2 | "rrcrcrrrcrrcrrrc" |
| Cascara 2-3 | 2 | "h>rh>rhh>rhh>rhh>rh>rh" |
| Rock 4/4 | 2 | "(bh)h(sh)h(bh)h(sh)h" |
| Funk 4/4 | 4 | "(bh)h>hb s>rhh> bhh>b (s>h>)r(s>h>)r" |
| Funk with Ghost Notes | 4 | "(bh)s,hs> hs,hs, hs,(bh)r (s>h)rhr" |