seq for 3sis using asl functions + freq modulation

hoje.lua

--- HOJE by @glia based on TONIGHT by @jlmitch5
-- output 1 > 3sis CENTRE inlet
-- output 2 > FREQ inlet
-- output 3 > HIGH inlet
-- (optional) connect LOW outlet to FM inlet + output ALL


seq = { 0, 4, 5, 7, 9, 2, 4, 7, 0 }
step = 2
switch = 1
a = math.random(2,8)
b = math.random(3,10)
c = math.random(1,6)
level = 10
time = 2.2

function init()
    output[1]( loop { rtm
        , to(function() return level/a end, function() return time/b end)
        , rtm
        , to(function() return -level/c end, function() return time/a end)
        , rtm
        , to(function() return -level/b end, function() return time/c end)
        , rtm
        , to(function() return -level/a end, function() return time/b end)
    } )
    output[3]( loop { rtm
        , to(function() return level/a end, function() return time/b end)
        , rtm
        , to(function() return -level/c end, function() return time/c end)
    } )
end

function rtm()
    output[2].volts = seq[step]/12
    output[2].slew = math.random(0,3)/100
    step = ((step + math.random(0, 2)) % #seq) + 1
    if step == 1 then
        switch = (switch + 1) % 2
        if switch == 1 then
            a = math.random(2,8)
            b = math.random(3,10)
            c = math.random(1,6)
        end
    end
end