I started out wanting to put some beats to some poetry I wrote. After all, rap is a form of poetry. You try to get a hook to grab the audience listening to the words. Then you have to have that rhythm, the beat, to keep them interested in hearing the whole rhyme. I found a beat making software that could produce professional quality results without a learning curve that would require me months to learn. Some of the software out there for making beats is really tough to use, and it does not even produce studio quality sound.
A pro has requirements for the quality of the beats made. Not only the rhythm, but the actual quality of the digital sound file.