Developing a Song from a Keyboard Melody
Develop an AI song from melody using a keyboard sketch in ACE Music. Review the notes, add lyrics and style, and choose a useful musical direction.
If you already have a tune under your fingers, use it as a musical starting point instead of describing every note in words. ACE Music can capture a keyboard melody or develop a sketch in Songwriting Assistant, then use that material to guide a new song. Keep the original sketch so you can compare the musical idea with the finished interpretation.
Start with the phrase the song needs
Play a short melody with a clear shape and rhythm. A strong phrase is more useful than filling the entire recording with tentative ideas. Decide whether it is the verse, the chorus, or simply a motif you want to develop.
If chords are part of the idea, write down the progression and the moment where the melody feels resolved. Chord progression to song creation works best when harmony supports a recognizable phrase rather than replacing one.
Capture it in ACE Music
1. Record a short keyboard phrase in Idea
Open Create → Idea and choose Play with keyboard or the keyboard control. Use the on-screen keys or the computer keys shown in the interface. Choose an octave that lets you play the intended phrase, start recording, perform it, and stop.
Play the recording back before selecting Done. If the rhythm or ending is not what you meant, use Start over and make a clearer take. The keyboard records note information, not the sound of an external keyboard's piano or synthesizer patch.
An original exercise is a four-bar melody with one repeated opening and a different ending. Decide which ending makes the phrase feel resolved. This is a composition exercise, not a tested preset or a fixed melody every reader should copy.

Open Play with keyboard and choose a comfortable octave before recording.

Stop the short take, review the recorded notes and select Done to attach it.
2. Use a MIDI keyboard only when useful
If you prefer a controller, use Connect MIDI in the quick keyboard panel, or the keyboard menu in Songwriting Assistant. Respond to the browser's MIDI permission request as appropriate for your setup. If the device or browser does not work with that route, use the displayed keys instead.
For a MIDI file already on disk, use Sheet music import rather than playing it again. Check the recognized reference before generating. Capturing notes and reading an existing file are different ways to prepare the same musical starting point.
3. Develop the sketch in Custom when needed
Open Custom → Songwriting Assistant for a more deliberate melody-and-chord workflow. Choose or adjust chords, then use Write melody, or proceed with the melody without a chord plan. Enter, record, or edit the phrase and listen to it before generating.
If an audio reference was already present, read the prompt about continuing into the assistant. Its musical content becomes the active generation reference while the assistant is open; check which source you are actually using. Do not assume both references remain active together.
4. Check the reference and the song inputs separately
Check the current model and reference controls. This run used a keyboard reference in Idea with ACE Music v1.1 Preview. For a separate Custom workflow, review Lyrics and Style independently; the melody reference does not supply finished lyrics by itself.
In the in-page Songwriting Assistant, Generate uses the current melody. When editing an added reference, use the confirmation shown by that editor, such as Done or Apply, to retain the reference changes before returning to the song inputs. Do not carry a button sequence from another editor blindly.
Generate and review the available song in Library. Compare the entered phrase with the result's melodic role. Updating reference notes prepares another generation; it does not rewrite notes inside the audio you generated earlier.
Give the melody a lyrical and musical destination
An original brief might be:
Develop this melody into a hopeful piano-pop song about returning to a creative project after a long break. Let the opening phrase feel tentative and the chorus feel more confident. Use clear lead vocals, restrained percussion, and a supportive bass line rather than a busy arrangement.
When words already exist, place them in Lyrics separately from the Style description. Listen for natural syllable placement and whether the main phrase still feels like the center of the song.
Audio from this actual run
This real example used Idea → Play with keyboard. We recorded a short phrase with the computer keys, stopped at about eight seconds, selected Done and added the English brief below. ACE Music v1.1 Preview returned two songs, Starting Again. No external MIDI controller, microphone, chord editor or Songwriting Assistant was used in this run. Compare how the songs interpret the phrase rather than assuming exact note preservation.
Develop this melody into a hopeful piano-pop song about returning to a creative project after a long break. Let the opening phrase feel tentative and the chorus feel more confident. Use clear English lead vocals, restrained percussion, and a supportive bass line rather than a busy arrangement.

Keyboard Melody is attached in Idea alongside the English musical brief.

The new versions have finished generating in Library. Play both to assess the result against your brief.

Open Download for the selected result, choose MP3 and confirm the download.
Review the reference and the generated performance separately
An AI song from melody can develop harmony, phrasing, and arrangement in new ways. First inspect whether the reference notes and rhythm were entered correctly. Then listen to the song to judge how that reference was interpreted.
If a melody note needs changing, edit the reference and generate a new result. Updating the sketch is not the same as replacing a note inside previously generated audio.
Choose a detailed production route when needed
For a full-song exploration, ACE Music provides a useful way to develop a sketch. For a vocal part that must follow exact MIDI notes and lyric alignment, use ACE Studio's vocal-synthesis workflow and make the note-level decisions there.
These routes can complement each other, but their outputs serve different purposes. Start with your keyboard melody in ACE Music when you want to hear where the idea could lead as a complete song.
Questions about keyboard-led songs
Will the generated song use my keyboard's sound?
This input captures notes, not the external instrument's recorded tone. Describe the desired arrangement separately, or record an authorized audio source when sound itself is the reference.
Do I need chords before a melody?
No. You can begin with a clear phrase. Use the assistant's chord workflow when it helps develop the idea, rather than adding harmony only to fill a panel.
Is this the same as exact MIDI vocal synthesis?
No. This route develops a full-song interpretation from a reference. For a separate vocal whose notes and lyric alignment need direct control, use the ACE Studio workflow.
The octave controls in this example are for desktop. On a phone, use the quick keyboard’s range control to scroll through C3–C6; it opens around C4.