How to Write a Rap Song, From Choosing the Beat to the Final Draft

Step 1: pick the beat and let its mood choose the topic

Play beats with a pen in hand, not a topic in mind. When one makes you see something, a place, a person, a night, stop there: that picture is your topic. Then check two numbers on the beat page. The BPM tells you how much room you have: around 85 to 95 BPM leaves space for dense, wordy verses, while trap tempos around 140 with half-time drums suit fewer, punchier words. The key matters if you plan to sing the hook.

Listen three times before you write anything: once for the mood, once counting the bars of the intro, once humming over it. The humming often hands you the rhythm of the hook before you have a single word.

Before writing a single bar, put the song's point in one sentence. For our example, on a nostalgic piano beat at 90 BPM:

"I learned to rap on a borrowed mic in my bedroom, and that room still writes my best lines."

The hook will say that sentence in a way people can sing back. The verses will prove it with details.

What to rap about: ideas matched to beat moods

Most lists of what to rap about ignore the beat, which is why the ideas feel random. Instead of a general list of what topics to rap about, match the topic to the mood you already hear:

Sad, emotional beats (minor piano, lonely guitar)

Someone who is gone, a friendship that ended, a letter to your younger self, the thing you never said. Our sad rap beats are made for these.

Dark, aggressive beats (low 808s, bells, brass)

Pressure, ambition, doubt turned into fuel, the hours nobody sees. Aim the anger at situations and inner doubts, not at real people.

Nostalgic, triumphant beats (warm samples, big chords)

Where you started, the family who held it down, the first win, then and now.

Chill, smooth beats

A day in your life, the city at night, a relationship told honestly.

Energetic, bouncy beats

Confidence, the weekend, a crowd that moves with you.

Still asking yourself "what should I rap about?" Write down three things that happened to you this month, then keep the one that fits the beat's mood. Specific beats general every time: "the bus I took to work" says more than "the struggle". A quick test: if you can't name three concrete details about a topic, a place, an object, something someone said, pick another one.

Step 2: map the song on the beat

Before writing lines, decide where each part goes. A classic map for a 90 BPM beat:

• Intro: 4 bars
• Hook: 8 bars
• Verse 1: 16 bars
• Hook: 8 bars
• Verse 2: 16 bars
• Hook: 8 bars
• Outro: 4 bars

That is 64 bars, or 256 beats: about 2 minutes 50 seconds at 90 BPM. On a trap beat around 140 BPM in half time, rappers count at the tempo they feel, so each line covers two bars of the beat and the same map runs about 3 minutes 40 seconds. Hook first or verse first is the real question behind how to start a rap song. Opening on the hook grabs listeners before they skip; opening on a verse sets the scene first. You don't have to guess where these parts fall on a given beat: the Which structure? section of every NKSounds beat page shows options such as Hook first, Verse first, No hook and With pre-hook, with the timecode where each part starts. Our guide to rap song structure explains when to use each one.

Then press Write lyrics on the same page. You get one text box per part of the structure, so the map is already laid out for you: intro, hook, verse. As the beat plays, the current part lights up; rap your lines out loud over it and you will hear straight away whether a line fits its bar. Fill the boxes in the order that comes easiest: most people write the hook first, then verse 1, and verse 2 last, because by then the song knows what it is about.

Step 3: write the hook first

The hook is the part people remember, so write it while the idea is fresh. Keep the words simpler than in the verses, repeat the key phrase and make it easy to say or sing on the first listen. Four lines, performed twice, fill 8 bars. For our example song, "Bedroom Light":

• Borrowed mic in a bedroom light (A)
• wrote my first sixteen in a single night (A)
• now the rooms get bigger and the crowd's in sight (A)
• but I still write it all in that bedroom light (A)

One rhyme sound all the way through, the title at the start and at the end, and short words a crowd can shout back. Test it the simple way: loop the hook with Loop this part and say it over the beat ten times. If you are bored by the third pass, change the words, not the beat. No words coming at all? Hum a melody or a rhythm over the hook section first and fit syllables to it afterwards: plenty of hooks start as sounds. A hook can be rapped, chanted or sung; on a melodic beat a sung hook lifts the song, while on a hard beat a short chant often hits harder. More techniques in our guide to writing a rap hook.

Step 4: write the verses

A verse is where you prove the hook. Plan the 16 bars before you fill them (at 90 BPM they last about 43 seconds):

Bars 1 to 4

The scene. Where are we, what do you see?

Bars 5 to 8

The problem. Who doubted you, what got in the way?

Bars 9 to 12

The turn. The moment something changed.

Bars 13 to 16

The punchline, and a last line that leads back into the hook.

The opening of verse 1 for "Bedroom Light", in pairs of rhyming lines (AABB):

• Mattress on the wall so the neighbours couldn't hear (A)
• cheap mic taped to a lamp, I was rapping through the fear (A)
• Mum knocking on the door saying go to sleep (B)
• I said one more take, the beat is on repeat (B)

Concrete objects (the mattress, the lamp, the door) do the work that "I was struggling" never could. Verse 2 needs its own angle, not a rewrite of verse 1: in the example, it moves to the present, what the bigger rooms cost and what stayed the same. Switching to alternating rhymes (ABAB) marks the change of time:

• Now the club has got a guest list and my name is on the door (A)
• same name that the teachers wrote in red on every page (B)
• Mum still keeps the lamp, she says she doesn't know what for (A)
• but she leaves it switched on every time I'm on a stage (B)

The lamp from verse 1 comes back with a new meaning, which ties the song together without repeating a line. Our guide to writing a rap verse goes deeper into counting and filling 16 bars.

Step 5: rhymes, punchlines and flow

Once the verse says the right things, make it sound right.

Rhyme schemes

Couplets (AABB) are easy to follow; alternating rhymes (ABAB) feel more like storytelling. Multisyllabic rhymes match several vowel sounds in a row and make a line hit harder: "Started on a borrowed mic, now they call me for tomorrow night / same old notebook, every page I filled is a closed book." Our guide to rap rhyme schemes breaks these patterns down.

Punchlines

A punchline is a line with a twist at the end, often a double meaning. Before: "I worked hard and now I'm doing well." After: "Taped the mic to a lamp when nobody rated me / now the lamp's the only one still throwing shade at me." The lampshade turns into the shade people threw.

Flow

Say each line over the beat, not in your head. Land key rhymes on the snare, vary the rhythm from one bar to the next and mark where you breathe. If a line makes you rush, cut a word.

Step 6: rehearse, edit and record

Read the whole song out loud over the beat, start to finish, three times. Then edit:

• Cut every line that only exists to rhyme.
• Swap general words for specific ones.
• Check that each verse fits its 16 bars when you rap it, not just on paper.
• Mark breaths at the end of lines, never in the middle of a phrase.

If you can, leave the draft overnight and read it again in the morning: the weak lines are obvious with fresh ears, and the strong ones still hold.

Drill the verse you find hardest with Loop this part until you can rap it without reading. Your lyrics stay saved in your browser, and you can email them to yourself. When the song is ready, record it on the untagged WAV that comes with the license; our guide on how to record vocals over a beat covers the setup, from a phone to a full DAW. Every beat you buy also includes mastering of your finished track.

Checklist before you record

This list sums up how to write a rap song step by step and catches what usually slips through. Run it once the draft is done:

• The song's point fits in one sentence, and the hook says it.
• The hook is simple enough to repeat after one listen.
• Each verse has its own angle and its own details.
• Every verse fits its bars when rapped on the beat.
• No filler lines, no rhyme that exists only to rhyme.
• Breaths are marked, and you can perform it without reading.
• You have the license for the beat and the untagged WAV.

The selection below groups beats by three moods: sad and emotional, dark and aggressive, nostalgic and triumphant. Pick the one that matches your topic, open a beat and start writing.