How to Make a 15-Second Intro With Flow Music AI

Flow Music AIon 21 hours ago

To make a 15-second intro with Flow Music AI, generate an instrumental with a quick opening motif, then cut a 15-second excerpt in your audio or video editor. Putting “15 seconds” in the prompt describes the job the music needs to do. Set and verify the actual runtime on the editing timeline.

1. Mark the picture and the first spoken line

Say you're making a short home coffee tutorial. The title lands at the start, the host starts talking at 0:03, and you cut to the first close-up at 0:15. That gives the music three jobs:

0:00–0:03: Give the title a recognizable sound. A short motif can do it in a few notes.
0:03–0:12: Let the host explain the premise. Keep the backing sparse and turn it down once the voice starts.
0:12–0:15: Give the track room to resolve or fade before the next shot.

Three colored paper segments representing a title, a spoken line, and the handoff to the next shot

These times are an example. If the first line starts at 0:01, plan to lower the music there. Use the actual voice recording to find that point; a placeholder clip won’t tell you which words get buried.

2. Generate something you can cut

Open the Flow Music AI music generator, leave it in Simple mode, and switch on Instrumental. Paste a prompt that explains when you need the musical idea to arrive and what needs to stay out of the way:

Instrumental opening for a 15-second home coffee tutorial. Start immediately with a short felt piano motif. Follow it with soft shaker and a sparse bass pulse. Leave space for a speaking voice after the opening phrase. No long buildup, busy drum fills, or big drop. Look for a quiet point of resolution after a short phrase.

Felt piano keys and small percussion shapes illustrating a simple opening arrangement

Preview each candidate beyond its opening. A useful phrase might begin at 0:08 in the source and still work at 0:00 in your edit. Listen for an identifiable first note, a stretch that can sit behind speech, and a place where the chords can come to rest. Mark that passage, then download the track as an MP3.

On November 14, 2026, the generator displayed 10 required credits in its default V5 configuration. Check the displayed cost before generating another candidate. For help describing pace, see the Flow Music AI tempo prompt guide.

3. Set the runtime and shape the ending

Import the file into your editor on its own track. Audition the exact start against the first shot. If the source phrase starts at 0:08.000, a 15-second selection ends at 0:23.000. Place that excerpt at 0:00 on the project timeline, with its right edge at 0:15.

In an audio editor such as Audacity, work with a copy of the file in its own project if you're preparing a reusable intro. The Trim Audio command keeps the selected portion of a clip. After trimming, align the clip to the start of the project, then apply a fade out to the last half-second as a starting point. A short fade can soften a cut; if it swallows the last note or ends halfway through a drum fill, try moving the source selection to a more natural break and keeping the same 15-second duration.

Headphones beside a paper waveform tapering toward the next clip

In the video project, bring the music down around the first spoken word and play from the opening shot through the following cut. Can you catch every word? Does the cut feel like a handoff, or does it sound like the music was interrupted? Listen on a phone speaker if that's how your audience usually watches. If the phrase works but the voice is buried, adjust the mix. If there’s no good place to enter or exit, try another passage or generate one with a simpler arrangement.

Export the finished video and play the opening back once. If you export a standalone intro, import that file into the target editor and verify its duration there, especially if it has to meet an exact delivery spec. For paid or client work, confirm your plan's license and check the Flow Music AI terms before delivery.