At first there is the possibility to create songs in a jam session. That means that one musician plays something that comes into his mind by plucking around or that he worked out at home. The others now try to find a part that fits. When a passage sounds good, it's kept and the musicians try to find some more passages; usually of the same scale because that always fits. The easiest way is to start with a melody (a riff, piano...) but you don't have to. You can also start with a groove e.g..
There's also the possibility of one-person-song writing. That means that one person has to be quite talented to play all the instruments e.g. Billy Howerdel (A Perfect Circle) or Richard Melville Hall (alias Moby) or that the music is written on one instrument and then transcribed for the other instruments e.g. Bach, Stravinsky & Ravel who transcribed their ideas from piano to viola, oboe, flute...
When you have finished this process you have got some songs but no one cares, so you ought to present them. One of the most popular ways of presenting your work is live performance. A gig entertains the crowd and makes them more interested in your work. At least if you do a good one. Another way of spreading your music is of course airplay. When your songs are played on the radio or on TV you reach much more people than without any airplay - that’s for sure. To get your songs even more popular you can hand them to a DJ who plays that kind of music. Some DJs only play electronic music (Trance, Techno, Hardcore…) others only play Rock e.g. sometimes at the “Grünspan”.
At first there are the singers who create noise. Singers can sing solo, with other band mates or in a choir. They can use their voice in a percussive (Zack Tell of Clawfinger) or in a more melodic way (Sarah Bethens, K's Choice). The percussive way, tied to rhymes, is quite typical for Hip-Hop. But th