Song Analyzer

Once you know the key, you can open the AI Singing Voice Generator and write a vocal part that fits the track. Add MIDI and lyrics, then shape the melody, timing, breath, pitch, and expression until the performance supports the song.

If the analyzer shows a tuning reference that differs from standard A440, you can also use that information as a reminder to check how new vocals sit against the original audio.

Good for:

• Vocal demos
• Hooks and toplines
• Harmonies
• Backing vocals
• Alternate vocal ideas

You still write the part. ACE Studio as a powerful AI Music Studio gives you a way to hear it clearly.

If you want to remix, study, or rebuild the song, send the track to the Stem Splitter. Separate vocals, drums, bass, and instruments so you can work with the parts more directly.

Use it to isolate a vocal, remove a section, study the groove, rebuild an arrangement, or prepare cleaner material for a remix. The analyzer gives you the track's overall musical profile first, while stem splitting gives you more control over the individual parts.

Knowing the key helps you write parts that belong in the track. Knowing the tuning reference helps you listen more carefully for pitch compatibility before layering new material.

With AI Instruments, you can turn MIDI into expressive instrumental performances and shape the articulation instead of relying on static sounds.

Try a violin line, a saxophone response, a trumpet accent, or a supporting layer that follows the song's harmonic center. Use the BPM to place the part in time, the key to keep it musically grounded, and the tuning result as a guide when checking how naturally it blends.

If the song already has a vocal idea, the AI Voice Changer can help you test a different tone or virtual singer while keeping the melody and phrasing in place.

That makes it easier to hear whether the part needs a softer delivery, a stronger lead, a different texture, or a more experimental vocal sound. The key and tuning results give you extra context before you decide how far to reshape the vocal.

When the BPM and key are clear, prompt-based tools become easier to guide. Use Add a Layer to prompt a short idea, texture, or supporting loop that fits the direction of the track.

Start with the musical facts, then describe the feel:

"Create a warm 92 BPM R&B guitar loop in F minor with soft movement and space for vocals."

The prompt gives you a starting point. You decide what stays.