Extend Song lets AI keep writing your song. Upload the audio file to extend (mp3 or wav, up to 8 minutes), fill in the title and desired style, and AI composes new sections from the end of the track, automatically merged with the original into one full song. Lyrics are optional: write your own for the extended part, or leave blank and AI writes them. Great for growing a short melody into a complete piece, adding a second verse and chorus to an existing song, or lengthening background music. Generation takes about 1-10 minutes; you get download links for the full merged song and the extended section. Please upload only music you created or are licensed to use. Audio output format: MP3. Maximum total upload size per request: 256MB (all files and message content combined). Accepted audio formats: mp3, wav. Maximum number of audio files: 1. Maximum size per audio file: 50MB. Output content formats: Audio Audio input: one MP3/WAV file (up to 8 minutes). Audio output format: MP3 (the full merged song plus the extended section). This module does not support continuous conversations. AI can make mistakes. Please verify important information.