AI ショート動画音楽生成器

Clipped guitar pickup → crisp full-band reveal accent → repeating two-bar keyboard hook → thinner groove for product details → short coordinated stop. Make that sequence an original instrumental funk-pop cue, 4/4 near 116 BPM. Syncopated bass and dry handclaps hold the light groove together. The opening should arrive quickly, without a long build or lead vocal. Leave just a small reverb tail after the stop so the reveal can be cut cleanly.

Spoken tutorial mix, 94 BPM / 4/4 / instrumental. Foreground: reserve it for instructions; do not write a lead tune or vocal chops. Underneath: warm electric-piano chords, soft dry rim clicks, one simple rounded bass pattern. Between phrases: an occasional high note, never a busy fill. Keep harmony slow, energy low and four-bar phrases consistent. A restrained closing chord should be the only sense of arrival. Aim for clarity around numbers and operation names.

Build a making-of cue in four passes, 4/4 around 102 BPM: 1. Show the materials: marimba alone introduces a small repeating figure. 2. Hands begin working: bring in bass, muted acoustic guitar and a light brushed groove. 3. The finished object appears: open the harmony and add warm strings. 4. Revisit the marimba figure, then release gently. Keep the instrumental motif recognizable through every addition. Preserve the tempo and room for work sounds; use no singing.

A travel diary should still sound like the place: waves, shoes on stone, distant street life. Around those gaps, weave a relaxed fingerpicked-guitar phrase in 4/4 near 92 BPM. Let shaker and rounded bass emerge gradually; a distant electric guitar replies only at phrase ends. This instrumental indie-folk cue opens its harmony in the second section, then comes home to the guitar figure. Keep the dynamics moderate, avoid hits on every cut, and let the last view breathe into the decay.