Happy Birthday to You — birthday-party instrumental

New instrumental recording and arrangement created for this birthday experience on 2026-11-09.
The familiar traditional “Happy Birthday to You” melody is public domain in the United States. No commercial recording, vocal performance, samples, or soundfont was used.

Arrangement: bright mallet / piano-style melody, bass and light synthesized percussion; two verses, 124 BPM, 3/4. All sounds were created from mathematical oscillators and generated noise using the reproducible Python renderer scripts/render-birthday-party.py (kept with the website source).
Duration: approximately 27 seconds. This is an instrumental, not a sung recording.

New arrangement, renderer and generated recording may be freely used, modified and redistributed for any purpose. No attribution is required for the new material. No artist endorsement is implied.