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(ns scratch
(:require [unheard.midi :as midi]
[unheard.midi.percussion :refer [kick snare hat]]
[unheard.instrument.minilab3 :refer [minilab3]]
[unheard.theory :refer [note poly]]
[missionary.core :as m]))
#_(print-all-midi-devices)
(def midi-keyboard "CoreMIDI4J - Minilab3 MIDI")
(defn triad [>c >tonic]
(poly
;; This is a major cord,
;; held 32 32nd notes.
;; The tonic can vary.
(note >c 0 32 >tonic)
(note >c 0 32 (m/latest #(+ % 4) >tonic))
(note >c 0 32 (m/latest #(+ % 7) >tonic))))
(defn song
[{:keys [clock tonic]}]
(poly
(triad clock tonic)
(triad clock (m/latest #(+ % 12) tonic))
;; The rest of the "song" is a drum pattern.
(note clock 1 1 (m/ap kick))
(note clock 9 1 (m/ap kick))
(note clock 17 1 (m/ap kick))
(note clock 25 1 (m/ap kick))
(note clock 1 1 (m/ap hat))
(note clock 5 1 (m/ap hat))
(note clock 9 1 (m/ap hat))
(note clock 13 1 (m/ap hat))
(note clock 17 1 (m/ap hat))
(note clock 21 1 (m/ap hat))
(note clock 25 1 (m/ap hat))
(note clock 29 1 (m/ap hat))
(note clock 5 1 (m/ap snare))
(note clock 13 1 (m/ap snare))
(note clock 21 1 (m/ap snare))
(note clock 29 1 (m/ap snare))))
;; TODO: Move into /dev
;; Add logging
(defn debug-flow [f]
((m/reduce prn nil
(m/ap (m/?< f))) prn prn))
(def run
(midi/<bus midi-keyboard
(fn [v]
(m/ap
;; 2 is the number of message types, e.g. :key
(let [controls (midi/controller v minilab3)
song-config {:clock (get-in controls [:knob 1])
:tonic (get-in controls [:knob 2])}
p (song song-config)]
(m/amb=
[:n (m/?< p)]
[:c (m/?< (get-in controls [:knob 1]))]))))))
#_
(def cancel
(run prn prn))
#_
(cancel)
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