genmusic.online

# GenMusic

> Music creation and browser-based audio editing at https://genmusic.online.

## How to use this site

AI creation requires an account and applicable access or credits. Current costs and download access are explained on the tool and pricing pages. Do not assume unlimited use or a commercial license.
Local editing and analysis tools process selected files in the browser without requiring sign-in. File size and duration limits vary by tool. Transfers between tools require manual download and import.
Use audio you have permission to edit. Analysis results are estimates. Listen to edited and generated results before use.
English tools use unprefixed URLs; Chinese tools use /zh/. The tutorials listed below are in English.

## AI music creation

- [AI Music Generator](https://genmusic.online/ai-music-generator): Create source music from a written brief.
- [Lyrics to Song](https://genmusic.online/lyrics-to-song): Create songs from your lyrics.
- [AI Song Extender](https://genmusic.online/ai-song-extender): Continue compatible completed tracks saved in your own library; not general external audio upload.
- [Pricing](https://genmusic.online/pricing): Review current plans, credit packs and access.

## Local audio tools

- [Slowed + Reverb: speed changes pitch; reverb adds an export tail.](https://genmusic.online/slowed-reverb)
- [Song Trimmer: select and export a time range.](https://genmusic.online/song-trimmer)
- [Music Looper: repeat a selected phrase or fill a target duration; crossfades shorten joins.](https://genmusic.online/music-looper)
- [Sample Chopper: divide audio into sample slices.](https://genmusic.online/sample-chopper)
- [Audio Joiner: arrange and join audio clips.](https://genmusic.online/audio-joiner)
- [Audio Reverser: reverse an entire file or selected range.](https://genmusic.online/audio-reverser)
- [Bass Booster: adjust low frequencies with peak protection.](https://genmusic.online/bass-booster)
- [Audio Normalizer: normalize sample peaks; this is not perceptual loudness matching.](https://genmusic.online/audio-normalizer)
- [BPM Finder: estimate tempo with half/double-time candidates; not automatic bar detection.](https://genmusic.online/bpm-finder)
- [Music Key Finder: estimate major/minor key candidates; results can be ambiguous.](https://genmusic.online/music-key-finder)
- [Pitch Changer: shift semitones while preserving duration; audition for artifacts.](https://genmusic.online/pitch-changer)

## Tutorials and measured examples

- [How to Make Slowed + Reverb: What 85% Speed Actually Changes](https://genmusic.online/blog/how-to-make-slowed-reverb): Hear three original examples and inspect measured WAV lengths. Learn why 85% speed is 17.65% longer, how pitch shifts, and why reverb file length is not its audible tail.
- [Loop Music or Extend It With AI? A Measured Guide to Choosing](https://genmusic.online/blog/loop-music-vs-ai-song-extension): Compare real 9.6, 9.3 and 12-second loop exports, learn why crossfades shorten repeats, and choose between repeating audio and generating a new song section.
- [How to Make Background Music for YouTube Videos With AI](https://genmusic.online/blog/how-to-make-background-music-for-youtube-videos): Create AI background music for YouTube videos with three copyable prompts, a voiceover listening checklist, and a practical generation and editing workflow.
- [How to Turn Your Lyrics Into a Song With AI](https://genmusic.online/blog/how-to-turn-lyrics-into-a-song-with-ai): Turn your own lyrics into a song draft: structure verses and choruses, write a separate singing brief, and review words, pronunciation and arrangement.
- [How to Write AI Music Prompts: 15 Copyable Examples](https://genmusic.online/blog/how-to-write-ai-music-prompts): Write clearer AI music prompts with 15 examples for videos, podcasts, games and songs, plus a one-variable revision method and practical listening checks.

The slowed/reverb and looping measurements use original synthesized practice audio. They are not commercial-song benchmarks or new AI extension outputs. Guides identify their sources, screenshots and downloadable measurements.

## Expanded text

- [Full tutorial text](https://genmusic.online/llms-full.txt): The directory above plus the current English tutorials, generated from the same published content.

## Site information

- [Tool directory](https://genmusic.online/ai-tools)
- [Terms](https://genmusic.online/terms)
- [Privacy](https://genmusic.online/privacy)
- [Contact](https://genmusic.online/contact)
- [Sitemap](https://genmusic.online/sitemap.xml)