Writing a rap song, can be achieved by following some basic writing steps of structure and pattern. Rap as a genre may seem limited by a predefined set of beats and verses, but there's a lot more that goes into a rap song than these few elements. Each rap song has parts that are common to all songs, regardless of the genre or artist. For instance, each rap has a beat, hook, chorus, and verses; it is the arrangement of these components that differs from song to song and artist to artist.
Usually, when writing a rap song, the artist will start by working on the beat before writing the lyrics and vocal tracks. This is because once the instrumental beat is finished, it is usually easier to write lyrics to the beat that than writing the lyrics first and then trying to develop a beat that would go with the lyrics. Most raps consist of a drum track and bass line that plays along with the beat. Not many instrumental parts are required because the main part of a rap is the vocal track, specifically the hook or chorus that plays on repeat between the different verses.
These days, however, rap songs are becoming more experimental and collaborative, and many artists collaborate with other rappers during the process of writing a rap song. This leads to a final product that is a combination of two different rap styles that should complement one another. In addition, it forms a new style and makes the song writing process more manageable and interesting as each artist has a unique musical perspective hip hop song .
Sometimes along with the drum tracks and bass lines, a rap tune samples loops of tracks by other artists, not necessarily belonging to the rap genre. Such samples layer over the original instrumental tracks to add another dimension to the song. This brings about a combination of two different genres that collaborate for writing a rap song that has all the elements of a classic rap, with the beat, hook, and verses as well as a looped sample track that adds a new layer to the rap tune.
Writing a rap song requires practice and editing. In all likelihood, your first draft will be mediocre at best. That is fine and is to be expected. Just rewrite, reorganize, and rework it until you achieve the desired affect. You can also hire a rap writer and editor to help turn your rough draft into a completed song.