making 7 beats in a day is not impossible. a beat can be as simple as a 4 bar loop that has a kick, snare/clap, hihat, baseline and/or melody or just a sample over a drumloop. it only takes a few minutes to make a beat that way and im sure that you will end up w/ good and bad beats but who is to say what someone else might like. personally i like to spend some time on my beats. i like to use new sounds, chord progressions and melodies. i like to mix my beats and arrange them with the hooks, verses, intros and outros. i just make beats as i need to or feel like it and dont really make beats for others but i have a lot of beats that i dont use and i'll let others use them. in the past i have tried to make a lot of beats in a short time but they start sounding repetitive which is alright if you have a lot of clients but since i make em for myself i need a variety and they need to be tight to me.