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Update Tutorial.md

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Mustafa 2014-05-21 11:07:11 -07:00
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oregano/Tutorial.md
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@ -46,17 +46,19 @@ The purpose of playing notes on different tracks is we can have different filter
You can either use a preset instrument or define your own instrument You can either use a preset instrument or define your own instrument
;; this uses the piano preset ```clj
(define my-piano (preset-instrument 'piano)) ;; this uses the piano preset
(define my-piano (preset-instrument 'piano))
;; create a custom instrument ;; create a custom instrument
;; can use oscilators and envelopes ;; can use oscilators and envelopes
;; "freq" is the frequency parameter ;; "freq" is the frequency parameter
(define-instrument my-custom-inst (mul (sin 20) (sin "freq"))) (define-instrument my-custom-inst (mul (sin 20) (sin "freq")))
;; add envelope to instrument ;; add envelope to instrument
(define my-inst (preset-instrument "sine" (define my-inst (preset-instrument "sine"
(envelope A S D R)) (envelope A S D R))
```
### 2. Playing a note ### 2. Playing a note