Music: Inspired — Kevin MacLeod (incompetech.com)
CC BY 4.0 · creativecommons.org/licenses/by/4.0/
Excerpt edited, faded and mixed under narration.
Synthetic voice: Kokoro · af_heart
Visual demo: Claude Opus 5.5 Max · Audio revision: Codex
Music source: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1600022
No actual app alert audio is reproduced.