This collection of p5.js Sketches takes you through examples of building subtractive, additive, FM, granualar and sample based synthesizers with WebAudioXML.

https://editor.p5js.org/hanslindetorp/collections/L_kgKgM_w

Name
WAXML Subtractive Synth
WAXML Additive Synth
WAXML FM Synth
WAXML Granular Synth
WAXML Sample Player