Inconsistent / Odd Behavior when trying to combine sound-waves via map in a definst

[Bmottomus]

For context here, I am trying create a way to rapidly prototype new instruments by combining waves (as laid out below) using vectors as inputs. It seems that I can achieve defining instruments this way, but it only works as expected once I create a second instrument. The behavior seems inconsistent and rather odd - thanks for any help you can give!

(use 'overtone.live)

(defn linEnvelope [dur weights]
  (let [asd (map (partial * dur) weights)]
    (env-gen (apply lin asd) :action FREE )))

;; Trying to dynamically combine two different waves into a single instrument
;; However the below, when initially played, will only pick up on the first item in the vector
(definst onlyPlaysFirstVec [frequencies 0 amps 0 instruments 0 ]
   (map +
    (map 
      (fn [[fundamental-fq amp overtones weights envelope  waveT panT]]
        (let [fqs (map (partial * fundamental-fq) overtones)]
           (panT 
            (* (sum (map * (map waveT fqs) weights))
                envelope
                amp))))

       [[195.99772 0.5 [1 2 3 4]  [0.6 0.3 0.15 0.075] (linEnvelope (/ 3 5) [1/4 1/4 1/4 1/4]) (partial sync-saw) (partial pan2)]
       [329.62752 0.8 [1 2 3 4] [0.6 0.3 0.15 0.075] (linEnvelope (/ 3 5) [1/4 1/4 1/4 1/4]) (partial sin-osc) (partial pan2)]
       ]
     )
   )
 )

(onlyPlaysFirstVec)

;; For comparison, this is the above, but with the parameters manually placed where above they're generated in the map 
  (definst combinesAndWorksAsExpected []
      (map +
        (let [fqs (map (partial * 195.99772) [ 1 2 3 4])]
           (pan2 
            (* (sum (map * (map sync-saw fqs) [0.6 0.3 0.15 0.075]))
                (linEnvelope (/ 3 5) [1/4 1/4 1/4 1/4])
                0.5)))
        (let [fqs (map (partial * 329.62752) [1 2 3 4])]
           (pan2 
            (* (sum (map * (map  sin-osc fqs) [0.6 0.3 0.15 0.075]))
                (linEnvelope (/ 3 5) [1/4 1/4 1/4 1/4])
                0.8)))
        )
      )

(combinesAndWorksAsExpected)

;; Even stranger, when I play the map-generate instrument after creating *any* other instrument, it appears to work as expected
(onlyPlaysFirstVec)

[hlolli]

I'm surprised that this even works :) because you seem to interchange overloaded functions */- from a ugen and clojure call. I would make sure that any list, vector or sequence is converted to a buffer before passing it to definst. And do any clojure side sequencing on the instrument instance itself.

[hlolli]

For that matter, it would make sense to overload vectors too, just convert them to buffers, but that could still be a great source of headache since people would be likely to mix any type of data in them.