Previous: 3. Record drums and bass.
4. Action: Record the piano, guitars and other rhythm instruments.
Ingredients: The roadmap, the drum and bass parts you've just recorded, your written arrangements.
Explanation: Now you will replace the accompaniment track you used as your blueprint with a final take. I recommend that you record a guitar on the computer sequencer first. Guitar is a stronger rhythm instrument, so everything you do ater will sit in the groove better. Simply follow your roadmap -- play rhythm where indicated, counterpoint where indicated, solos and breaks where you planned them. Every so often a unique riff might occur to the guitar player. Stay with the general rule that if spontaneity works in the arrangement, go for it. After the guitars, do the piano. Since the piano is freer, and by its nature and both melodic and rhythmic, it will build on the drums, bass, and guitars you have just recorded.
Result: You've got rhythm, you've got music. (Couldn't resist that one).
Next 5. Record the counterpoint instruments and solo instruments.