Mureka vs Suno: Formatting the Same Lyric Sheet

I keep one lyric sheet per song and paste it into whichever generator I am using that day. That works better than it has any right to, because the two platforms want the same two things: a block of words with structure in it, and a separate description of the sound.

The differences are real but smaller than the guides make out. Here is what each one documents, where they actually diverge, and what I would change when moving a sheet from one to the other.

What both platforms document

Suno's help centre article on Custom mode, written for the Android app but stating that it follows the same steps as the web workflow, describes it as: enter your own lyrics or have Suno generate them, toggle Instrumental if you do not want lyrics, then enter your Styles and any advanced options. Two boxes, one for the words and one for the sound.

Mureka's Custom mode is described the same way in its Knowledge base. You write or generate lyrics in the lyrics area, then set Style and Vocal Gender, then create. Its developer docs make the split even plainer: the song generation endpoint takes a required lyrics field and an optional prompt field, and Mureka's own example sends a lyric block plus the prompt r&b, slow, passionate, male vocal.

Bracketed section tags turn up on both sides, though neither platform publishes anything about what its model does with them. Mureka's own generator produces them, and its docs show them in lyrics: Custom mode is described as supporting structured output with verse, chorus, and bridge tags, and every lyric example in its API docs opens with one, [Verse] in the quickstart, [Pre-chorus] in the lyric continuation example, [Intro] in the song extension example. On the Suno side I have no documentation to point at either, so treat this as an observation rather than a cited fact: Suno users pass section tags in the lyrics box as a matter of convention, it is what I see across the community, and it is what I do myself.

So in practice the format is shared. Section tags in brackets, one section per block, blank line between sections, sound description in the other box.

Where they actually differ

Documented limits. Mureka publishes hard numbers for its API: lyrics up to 5000 characters, and a prompt field capped at 1024 characters for song generation. Its Easy mode prompt is documented at 2000 characters. I have not found equivalent published numbers for Suno's fields, so I am not going to invent any. Practically, the effect is that on Mureka you have a published ceiling to write against. Suno's boxes have limits too. They are just not written down on any page I found.

Vocal gender is its own field on Mureka. Mureka exposes a gender field with two values, female and male, separate from the style prompt. On Suno I have always had to describe the vocal inside the style text and hope. That is one fewer thing the prompt has to carry.

Mureka splits lyrics into their own endpoints. There is a dedicated lyric generation call, a lyric continuation call that takes existing lyrics and writes more, and a separate instrumental call that takes a prompt and no lyrics at all. The lyric sheet is treated as a first-class object rather than a field inside song creation.

Reference audio. Mureka's Custom mode documents uploading an audio file as a style reference, from which it extracts style tags such as "Indie Pop, Acoustic Guitar, 110 BPM". If you have a track that sounds like the thing in your head, that is a shortcut around describing it in words.

Two variants by default. Mureka's Easy mode documentation says each generation produces two song variants, and the API defaults to two per request with a documented maximum of three.

The habit that carries across

This part is mine, from Suno, and I am flagging it as such because I have not run these tests on Mureka and will not pretend otherwise.

Sections that share a melodic slot need to share a rough syllable count. When verse one runs nine syllables a line and verse two runs twenty, something has to give, and what gives is the phrasing. This is not a Suno quirk. It is what happens whenever a repeating melody has to swallow a different amount of text than it was shaped around.

The corollary is that the fix is portable. Even up your line lengths once, in your one lyric sheet, and it is even for both platforms.

Before and after, one sheet, both targets

Here is a draft in the state I usually write them, which is to say badly.

Before, lyrics:

Chorus: nobody told me the harbour lights go out at two in the morning and I have been standing here since the last bus left wondering whether you meant it
verse: cold night
the water is loud
I keep checking my phone
verse 2: I remember when you said that the city was too small for the both of us and honestly I think you were right about that even if you were wrong about everything else

Before, style prompt:

amazing emotional song, incredible vocals, moody, cinematic masterpiece, best quality

Three separate problems. The section labels are prose, not bracketed tags, so neither platform has a clean marker to read. The two verses are nowhere near each other in length, one at three short lines and one at a single forty-plus syllable run. And the style prompt describes how good the song should be instead of what it should sound like.

After, lyrics:

[Verse 1]
The water's loud, the night is cold
I check my phone for nothing
Last bus gone an hour ago
I'm still standing where you left me

[Chorus]
Nobody told me the harbour lights go out
Nobody told me you'd go out with them
Two in the morning, nothing left to doubt
Nobody told me, nobody told me

[Verse 2]
You said this town was built too narrow
For the two of us to pass through
You were right about the harbour
You were wrong about the rest

After, style prompt:

melancholy indie rock, slow, around 76 bpm, clean electric guitar, brushed kit, low synth pad,
restrained female vocal, dry close mix

Same words, roughly. The verses now sit within a syllable or two of each other line for line. The chorus repeats a line, which costs nothing and does more for a hook than any adjective. And the style prompt names a genre, a tempo, three instruments, and two things about the vocal, which is the same shape as Mureka's own four-word example, just longer.

That sheet is what I would paste into either platform. On Mureka I would set the vocal gender in its own field rather than leaning on the words "female vocal" in the prompt, and I would leave the model on auto. On Suno I would leave the vocal direction in the style text because there is nowhere else to put it.

Why I built Mugical

The reason I have one sheet per song rather than two is that I got tired of maintaining two. I wrote a small tool for myself: you give it a song idea plus genre, mood, instrumentation and era, and it returns a structured lyric sheet with the section tags and ad-lib cues in place, plus a style prompt covering genre, instruments, mood, tempo and vocal style. It formats for Suno and for Mureka, because as far as the input goes they are asking for the same thing in the same two boxes. Matching the meter between sections is still a pass you do yourself, and it is the part I am working on next.

It does not generate audio. That happens on whichever platform you paste into. What it produces is the text those platforms perform.

You can try it on a song idea. If the lyrics side is what you want to dig into, I wrote a longer piece on writing lyrics for Mureka specifically. And if your Suno takes keep arriving too fast, that failure has its own post: why Suno rushes your lyrics.