Given below are some live demos of how javascript can be utilized to develop applications, that respond to an user's key press event and play voice / music, based upon it.

These applications can be utilized for teaching, various age group people & also people with disabilities.

Apart from creating Codepen Demos of these applications, I have also uploaded it as a single zip file, for daily & local usage, here : https://sourceforge.net/projects/javascript-keypress-learn-kit/files/latest/download

After downloading the above zip file, extract it and then open the index.html file on internet browsers like Firefox ( preferable ) or Google Chrome.

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Please keep the sound volume of your speakers / headphones, to an optimum level, before testing the demos below.

1. Dynamic Nato / ITU / ICAO Phonetic Alphabet & Number Pronouncer :

2. Speaking Keyboard :

3. Grand Piano :

4. Sweet Piano :

5. Drum Kit :

6. 36 Musical Instruments :

7. Voice Based Accounting Software In Various Languages :