Tuesday, December 6

Tag: synth keyboard

How to Code a Playable Synth Keyboard
CSS Tricks

How to Code a Playable Synth Keyboard

With a little knowledge of music theory, we can use regular HTML, CSS and JavaScript — without any libraries or audio samples — to create a simple digital instrument. Let’s put that into practice and explore one method for creating a digital synth that can be played and hosted on the internet.Here’s what we’re making:CodePen Embed FallbackWe’ll use the AudioContext API to create our sounds digitally, without resorting to samples. But first, let’s work on the keyboard’s appearance. The HTML structure We’re going to support a standard western keyboard where every letter between A and ; corresponds to a playable natural note (the white keys), while the row above can be used for the sharps and flats (the black keys). This means our keyboard covers just over an octave, starting at C₃ and ...