fix: rename oscillator struct

main.c

@@ -72,23 +72,23 @@ SynthSound note(int semitone, float beats) {
     float hz = get_hz_by_semitone(semitone);
     float duration = beats * BEAT_DURATION;
 
-    OscillatorParameter first = {
+    Oscillator first = {
         .osc = Square,
         .freq = hz
     };
 
-    OscillatorParameter second = {
+    Oscillator second = {
         .osc = Saw,
         .freq = hz + 0.5
     };
 
-    OscillatorParameter third = {
+    Oscillator third = {
         .osc = Saw,
         .freq = hz - 1.f
     };
 
-    OscillatorParameter oscArray[] = { first/*, second, third */};
-    OscillatorParameterList parameters = {
+    Oscillator oscArray[] = { first/*, second, third */};
+    OscillatorArray parameters = {
         .array = oscArray,
         .count = 1
     };
@@ -137,6 +137,12 @@ size_t detect_note_pressed(Note* note) {
     return is_pressed;
 }
 
+typedef struct Synth {
+    OscillatorArray oscillators;
+    Note current_note;
+    SynthSound out_signal;
+} Synth;
+
 //------------------------------------------------------------------------------------
 // Main
 //------------------------------------------------------------------------------------