Free BGM
Secret Cipher Notebook
ひみつの暗号ノート
A puzzle-solving track with bouncy plucked synths and a curious rhythm that captures the fun of cracking a code.

Free for commercial use, credit optional. Please read the license before downloading. This track was generated with an AI music service.
- Length
- 0:57
- Instruments
- Plucky synths, light percussion
- Loop
- —
- Format
- MP3 (320kbps)
- Published
Bouncy plucked synths stack up short phrases over a quirky, head-tilting rhythm. The light tones keep it from getting heavy, as if the time spent thinking had been turned into music.
It fits puzzle and quiz-style videos, walkthroughs of brain teasers, learning content for kids, and scenes waiting for that moment of insight.
At about 0:57, it is short enough for intros, jingles, and short-form videos.
Before release, a short fade-out was added so the ending doesn't cut off abruptly.
Credit example (optional)
Credit is optional, but adding it to your video description helps us keep going and helps others find this track.
Music: "Secret Cipher Notebook" by Free BGM Library https://bgm.kurashi-dougu-memo.com/en/tracks/himitsu-no-angou-note
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