I'm not sure I understand precisely what you mean, but have you considered a table or array to hold the rhythmic durations? In this example 1 = 1 beat, .25 = sixteenth note etc.

</CsOptions>

<CsInstruments>

sr      =       44100

kr      =       44100

nchnls = 2

nchnls_i = 1

0dbfs = 1

gkcount init -1

instr trigger

ibpm = 120

ibeat = 60/120

irhythm[] fillarray 1, 1, 1, 1, .25, .25, .25, .75, 1, .75, .5, .25 

ilen = lenarray(irhythm)

ktrig  metro 1/ibeat/irhythm[gkcount]

schedkwhen ktrig, 0, 0, 1, 0, .1

    if  ktrig == 1 then

        gkcount += 1

    endif

    

    if  gkcount == ilen then

        gkcount = 0

    endif

endin

instr 1

kenv linseg 0, .002, .2, .1, 0

ametro  oscil kenv, 3210

outs ametro, ametro

endin

</CsInstruments>

<CsScore>

i"trigger"  0  16       

e

</CsScore>

</CsoundSynthesizer>

This will adapt to any bpm value you enter. Perhaps not the best solution, maybe someone else has easier solution.

Scott

ST Music
https://soundcloud.com/stoons-1

https://youtube.com/channel/UCGhwmkS1uWmX6mhTIQ0IDsg

On Tue, Apr 4, 2023, 5:49 AM Enrico Francioni, <00000005323c8739-dmarc-request@listserv.heanet.ie> wrote:

Hi everyone,

I ask for help
I would like to design a somewhat particular metronome: a metronome that always beats a given bpm (eg 53 MM), but which occasionally has short irregularities; the irregularities all have a precise action time and duration, therefore not random.

I know how to make a metronome, but a metronome with this particular feature, at the moment I'm not able.

The only idea that came to me was to fix all the players step by step in the score
i Statements of the instrument that manages the metronome…



here is an example:

<CsoundSynthesizer>
<CsInstruments>

sr      =       44100
kr      =       44100
nchnls = 2
nchnls_i = 1
0dbfs = 1

instr 1

iamp = ampdb(p7-12)
ibps = round(6000/p4)*.01
acotral mpulse iamp*.7, ibps
ametro resonz acotral, p6, p6*.01
outs ametro, ametro

endin

</CsInstruments>
<CsScore>
;       at              dur             bpm   measure   freq   amp
;first staff
i1      0               2               120      1          3210          -6
i.      2               .25             240      .           .  .
i.      2.25            2               120      .           .  .
i.      4.25            .375            480      .           .  .
i.      4.625   8.5             120      .           .  .
i.      13.125  .375            480      .           .  .
i.      13.5            1.5     120      .           .  .

;second staff
; etc…

e

</CsScore>
</CsoundSynthesizer>


Any other ideas?
k

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