How to Compare AI Song Versions and Choose What to Change Next

Two songs can come from the same idea and still feel different. One might tell the story more clearly; the other might have the chorus you keep humming. You do not need a producer's vocabulary to decide which one to keep.

Your goal: choose a version you want to return to, name one thing you want to change, and choose the action that fits that change.

Follow along with two completed songs from your own project. Our screenshots use two actual M5 results of “Your window is seven hours ahead” from the same generation: 1:05 and 1:34. The listening notes below are examples of how to describe a difference; they are not a review of those recordings.

Listen before deciding what to change

1. Give both versions a fair listen

Open the project containing your completed songs. Play the first version, then the second, using the same headphones or speakers and a comfortable playback volume. A louder song can feel more exciting at first, so listen to the performance as well as its impact.

On the first pass, let each song reach its chorus. If you are deciding which one to keep, listen through the ending too. A promising opening does not tell you how the rest of the song develops.

For a closer comparison, return to the same part of the song, such as the first chorus. That part may start at a different time in each version; matching the clock is less useful than matching what you are listening for.

2. Write down what you actually hear

Start with three questions:

These are example observations, not a scorecard. Your purpose matters: an intimate personal song and an energetic video soundtrack do not need the same performance.

If your song is instrumental, replace the words question with: Can I follow the main musical idea, and does it leave the space I need?

Avoid a note like “make it better.” Name a moment and the thing you heard. “The chorus feels crowded” gives you a direction you can act on.

Keep a starting point you like

3. Mark your preferred version as a favorite

Use the heart action on the song you prefer to add it to Favorites. This gives you a clear starting point to return to while you explore another result. Favoriting does not export an audio file. In our walkthrough, we favorited the 1:34 version as the starting point for the next experiment. This illustrates the workflow, rather than declaring it the better performance.

You do not have to agree that one version wins every category. You might choose B because its chorus carries the feeling you wanted, even if A has a clearer first verse.

Before continuing, finish these two sentences:

This is a planning note for you, not a prompt to paste into Lyrics. The next action determines which field you will use.

Choose the action that matches your goal

4. Open Create from this on your chosen song

Use Create from this on the song you want to continue from, such as in its details view. Read the action names before choosing: they represent different tasks.

For example, “I want a new interpretation of these words” points toward Regenerate. “I like this song but want to explore an acoustic style from its audio” points toward Cover. “I want a longer ending” points toward Extend.

Fix a section is for a specific problem in a defined range. It is not an instruction to recreate the whole song. The range cannot exceed half the song; the tool also needs to identify where the selected part starts and ends. Follow the availability and validation messages in the form.

You now have a preferred version and a reason for your next action. Return to that project and choose the action that fits your goal.

Make one deliberate change

5. Try Regenerate when you want another interpretation

For this walkthrough, imagine that you want to explore the same words with a quieter, more intimate musical direction. You are happy to hear a new melody or performance. That makes Regenerate a useful choice.

Choose Regenerate, then review what was brought into the composer. Check the selected mode and every field before submitting; do not assume all settings are available or have carried over unchanged.

• In Lyrics mode, keep the lyric the same for this experiment and edit Style.
• In Idea mode, keep the subject and story in Prompt, and change the wording that describes the musical direction.

A Style experiment for this kind of change is:

This describes one change in direction: a more intimate arrangement. The walkthrough used this input while keeping the existing lyrics and M5 model. It is an experiment, not a recipe that guarantees a particular sound.

Keep the other choices steady where you can. Changing lyrics, style, and model together makes it harder to tell what helped. If your account cannot use the previous model, note that the model change is another difference in the comparison.

6. Review the cost, then submit once

Check the credit amount on the generation button and review the input again. Opening Regenerate or editing its fields is not the same as submitting a generation.

In this walkthrough, the button showed 12 credits before submission. Check the amount in your own workspace; the cost can depend on the action and selected model.

Submit once and wait for the task state to update. If a task is still processing, another click is a separate request, not a way to make the first one finish faster. If a task fails, read its status and available recovery action before trying again.

The experiment later finished saving, producing two new results of 1:10 and 1:12. A duration difference is an observation, not proof that the new sound suits your goal better.

Your preferred earlier song remains your comparison point. This experiment creates a new result; it does not overwrite the audio you have already listened to.

Compare the change and stop when it works

7. Return to the question you wrote down

Play your preferred earlier version and the new result. Listen to the same verse or chorus, then ask the original question: Does this feel more intimate, and do I still like the hopeful chorus?

Write one short observation. For example, “The accompaniment feels less crowded, but I prefer the earlier chorus.” That can be a useful outcome even if the new result does not become your favorite.

Because a new generation can vary in several ways, this is a listening experiment, not proof that one phrase controls one musical detail.

If the new version works better for your purpose, mark it as a favorite. If it does not, you can keep the earlier version and stop. You can like more than one result; Favorites does not force you to choose a single permanent winner.

Before another request, decide whether you have a specific next change. If you cannot name one, give the music a break rather than generating repeatedly without a direction.

You have completed this guide when you can say: “This is the version I prefer, this is what I heard, and this is the next action I would choose.”