Added and documented new scale methods: semitones, cents and ratios

package.json

@@ -43,7 +43,7 @@
     "tone": "^14.8.49",
     "unique-names-generator": "^4.7.1",
     "vite-plugin-markdown": "^2.1.0",
-    "zifferjs": "^0.0.51",
+    "zifferjs": "^0.0.53",
     "zyklus": "^0.1.4",
     "zzfx": "^1.2.0"
   }

src/classes/AbstractEvents.ts

@@ -8,6 +8,7 @@ import {
 } from "zifferjs";
 import { SkipEvent } from "./SkipEvent";
 import { SoundParams } from "./SoundEvent";
+import { centsToSemitones, ratiosToSemitones } from "zifferjs/src/scale";
 
 export type EventOperation<T> = (instance: T, ...args: any[]) => void;
 
@@ -360,6 +361,36 @@ export abstract class AudibleEvent extends AbstractEvent {
     return this;
   };
 
+  updateKeyAndPitch() {
+    if (!this.values.key) this.values.key = 60;
+    if (!(this.values.pitch || this.values.pitch === 0)) this.values.pitch = 0;
+  }
+
+  semitones(values: number|number[], ...rest: number[]) {
+    const scaleValues = typeof values === "number" ? [values, ...rest] : values;
+    this.values.parsedScale = safeScale(scaleValues);
+    this.updateKeyAndPitch();
+    this.update();
+    return this;
+  }
+  steps = this.semitones;
+  
+  cents(values: number|number[], ...rest: number[]) {
+    const scaleValues = typeof values === "number" ? [values, ...rest] : values;
+    this.values.parsedScale = safeScale(centsToSemitones(scaleValues));
+    this.updateKeyAndPitch();
+    this.update();
+    return this;
+  }
+
+  ratios(values: number|number[], ...rest: number[]) {
+    const scaleValues = typeof values === "number" ? [values, ...rest] : values;
+    this.values.parsedScale = safeScale(ratiosToSemitones(scaleValues));
+    this.updateKeyAndPitch();
+    this.update();
+    return this;
+  }
+
   protected updateValue<T>(key: string, value: T | T[] | null): this {
     if (value == null) return this;
     this.values[key] = value;

src/classes/ZPlayer.ts

@@ -258,11 +258,29 @@ export class Player extends AbstractEvent {
     }
   }
 
-  scale(name: string) {
+  scale(name: string|number[]) {
     if (this.atTheBeginning()) this.ziffers.scale(name);
     return this;
   }
 
+  semitones(values: number|number[], ...rest: number[]) {
+    values = typeof values === "number" ? [values, ...rest] : values;
+    if (this.atTheBeginning()) this.ziffers.semitones(values);
+    return this;
+  }
+
+  cents(values: number|number[], ...rest: number[]) {
+    values = typeof values === "number" ? [values, ...rest] : values;
+    if (this.atTheBeginning()) this.ziffers.cents(values);
+    return this;
+  }
+
+  ratios(values: number|number[], ...rest: number[]) {
+    values = typeof values === "number" ? [values, ...rest] : values;
+    if (this.atTheBeginning()) this.ziffers.ratios(values);
+    return this;
+  }
+
   key(name: string) {
     if (this.atTheBeginning()) this.ziffers.key(name);
     return this;

src/documentation/patterns/patterns.ts

@@ -122,7 +122,6 @@ beat(1)::sound(['kick', 'fsnare'].dur(3, 1))
 
 ## Manipulating notes and scales
 
-
 - <ic>pitch()</ic>: convert a list of integers to pitch classes
 
 ${makeExample(
@@ -136,6 +135,41 @@ beat(0.25) :: snd('sine')
   true,
 )}
 
+- <ic>semitones(number[], ...args?)</ic>: Create scale from semitone intervals.
+
+${makeExample(
+  "Play pitches from scale created from semitone intervals",
+  `
+  beat(1) :: sound('gtr').pitch([0, 4, 3, 2].beat()).key(64)
+  .semitones(1, 1, 3, 1, 1, 2, 3).out()
+`,
+  true,
+)}
+
+- <ic>cents(number[], ...args?)</ic>: Create scale from cent intervals.
+
+${makeExample(
+  "Play pitches from scale created from cent intervals",
+  `
+  rhythm([0.5,0.25].beat(1),14,16) :: sound('pluck')
+  .stretch(r(1,5)).pitch(r(0,6)).key(57)
+.cents(120,270,540,670,785,950,1215).out()
+`,
+  true,
+)}
+
+- <ic>ratios(number[], ...args?)</ic>: Create scale from ratios.
+
+${makeExample(
+  "Play pitches from scale created from ratios",
+  `
+  rhythm([0.5,0.25].beat(0.25),5,7) :: sound('east:3')
+  .pitch([0,1,2,3,4,5,6,7,8,9,10,11].beat(0.25)).key(67)
+.ratios(2/11,4/11,6/11,8/11,10/11,11/11).out()
+`,
+  true,
+)}
+
 - <ic>scale(scale: string, base note: number)</ic>: Map each element of the list to the closest note of the slected scale. [0, 2, 3, 5 ].scale("major", 50) returns [50, 52, <ic>54</ic>, 55]. You can use western scale names like (Major, Minor, Minor pentatonic ...) or [zeitler](https://ianring.com/musictheory/scales/traditions/zeitler) scale names. Alternatively you can also use the integers as used by Ian Ring in his [study of scales](https://ianring.com/musictheory/scales/).
 
 ${makeExample(

yarn.lock

@@ -4028,10 +4028,10 @@ yaml@^2.1.1:
   resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.3.1.tgz#02fe0975d23cd441242aa7204e09fc28ac2ac33b"
   integrity sha512-2eHWfjaoXgTBC2jNM1LRef62VQa0umtvRiDSk6HSzW7RvS5YtkabJrwYLLEKWBc8a5U2PTSCs+dJjUTJdlHsWQ==
 
-zifferjs@^0.0.51:
+zifferjs@^0.0.53:
-  version "0.0.51"
+  version "0.0.53"
-  resolved "https://registry.yarnpkg.com/zifferjs/-/zifferjs-0.0.51.tgz#567efb39a1675fa622a1edc54d671318b58c43c7"
+  resolved "https://registry.yarnpkg.com/zifferjs/-/zifferjs-0.0.53.tgz#5e6e8a80ef90cd59ed607ab7cf02592efc03b08d"
-  integrity sha512-0uYFZNsdUL4wOv8x37HLenoEOKmcMi1hVpZIWXQwx9AsTeGvZqgVak0y02MSne5S5dMFmAO5s5ZXokc4kzbCeQ==
+  integrity sha512-XGREU1ClhaatEZaek6gTBcwaNfFkUZLENWhXILPjLCODXzFoC6D/qaYCaIegcJdGgqB7At3DqID4yNwFLRPeqQ==
 
 zyklus@^0.1.4:
   version "0.1.4"