Suno to OnSong: Get Your AI Songs into Your Gig App

The gap between "Suno wrote it" and "I can pull it up on stage"

If you use OnSong, you already know the drill: your whole set list lives in one app, chords over lyrics, auto-scroll, transpose on the fly, maybe a Bluetooth pedal for page turns. It's a great system, right up until you have a song that only exists as an audio file with no chart behind it.

That's exactly the situation with a Suno song. Suno hands you an MP3. It does not hand you a .cho file, a ChordPro chart, or anything OnSong can import directly. If you wrote a song with Suno and want to actually play it at a gig, a rehearsal, or from the pulpit, you need a bridge between "here's an MP3" and "here's a file OnSong can open." That bridge is what this article walks through.

I've been playing for 40 years and I've watched enough worship teams and bar bands try to wing songs from a phone speaker to know this is a real, common problem, not a niche one.

Why this matters more for Suno songs specifically

With a normal song, you'd usually search for an existing chord chart someone already transcribed — Ultimate Guitar, a worship chart site, whatever. With a Suno song, there's no such chart anywhere, because the song didn't exist until you generated it. You are the only person on earth who could go looking for a chart for that song. Nobody's uploaded one. You have to make it.

The good news: you're also the one person who already has the lyrics exactly right, since you wrote or edited the prompt. That's a real advantage over transcribing a random YouTube cover, and it's worth using.

Step 1: Get the MP3 out of Suno

Download the song from its page in Suno — MP3 on the free/standard tiers, WAV if you're on a paid plan with lossless export. Either works fine for what comes next.

Step 2: Grab your lyrics

Copy the lyrics straight from the Suno song page. Don't skip this step even though it feels optional — pasting your own lyrics instead of relying on automatic transcription means the words on your OnSong chart will actually match what you (or your singer) wrote, word for word, including any deliberate misspellings or stylistic line breaks. See our full Suno chords walkthrough for more on why this step matters so much for Suno users specifically.

Step 3: Run it through mp3chords

Upload the MP3 to mp3chords, paste your lyrics in, and let it process. It takes five to ten minutes — the pipeline is separating the vocal from the instrumental, running three chord-detection engines and voting between them, and (only if you skipped the lyrics-paste step) transcribing the vocal with Whisper.

When it's done you'll get a synced chart: chords sitting above the lyrics, organized by section (verse, chorus, bridge), viewable free on-screen with no cap on how many songs you can process.

Step 4: Check the key before you export anything

This is worth doing every time, not just for OnSong exports. Play the first chord of the chart against the actual recording. If the key feels wrong — sounds like it should be minor but reads major, or is a half-step off — that's the single most important thing to catch before you build a chart around it, because a wrong key throws off the spelling of every chord that follows. We go deeper on how we actually measure this kind of accuracy in how accurate are AI chord detectors.

If you need to shift it for your capo or your singer's range, use the transpose control now, before exporting.

Step 5: Export to OnSong format

mp3chords exports directly to OnSong format, alongside ChordPro (.cho), plain text, and PDF. This is one of the reasons Suno users end up here specifically — most chord detection tools stop at PDF or plain text and leave you to reformat manually for a gig app. Native OnSong export means you download the file and import it straight into your OnSong library without reformatting anything by hand.

If your gig app uses ChordPro instead of OnSong's native format, grab the .cho export instead — ChordPro is a widely supported open format, so it'll import cleanly into most chart apps beyond OnSong too.

Step 6: Import into OnSong

In OnSong, use the import function (via file, email attachment, or your cloud storage integration, depending on how you sync) and bring the exported file into your library. From there it behaves like any other song in OnSong — transpose on the fly, set it into a setlist, auto-scroll it during a set.

A note for worship leaders specifically

If you're building a Suno song into a worship set, the Nashville Number System view built into mp3chords is worth a look before you export. A lot of worship musicians think in numbers rather than letter names specifically so a chart transposes cleanly across keys for different vocalists. You can view it that way on-screen even if your final OnSong export uses standard chord names.

Try it on your own Suno track

If you've got a Suno song you want on stage this week, try mp3chords free on your own track — upload the MP3, paste your lyrics, and export straight to OnSong when it's done.

For the full comparison of how mp3chords stacks up against other chord tools if OnSong export isn't your only requirement, see MP3 to chords: the 5 best tools compared.

FAQ

Does OnSong support importing files directly from Suno?

No. Suno only exports audio (MP3 or WAV). You need to run that audio through a chord detection tool that outputs an OnSong-compatible file before you can import it.

What file format should I export for OnSong?

Export directly to OnSong format if your tool supports it — mp3chords does. If not, ChordPro (.cho) is a widely supported alternative format that most gig apps, including OnSong, can import.

Should I paste my own lyrics or let the tool transcribe them?

Paste your own. You already have the exact lyrics from writing or editing the Suno prompt, and pasting them skips the transcription step entirely, which avoids the misheard-word errors that come with transcribing sung AI vocals.

What should I check before exporting my chart to OnSong?

Check the key first. Play the first chord against the actual recording — if it sounds off, that's the highest-value thing to catch before building a whole chart and setlist around it.

Can I still transpose the song once it's in OnSong?

Yes. Once it's imported as a standard chart, OnSong's normal transpose function works on it the same as any other song. You can also transpose before exporting, directly in mp3chords, if you already know what key you need.