Concept

Answering machine in the center, instruments, mixer, microphones, etc. all around. Try to make symmetrical. See post-it and sketch. google images: Electric guitar bass guitar synth mic etc. All images should be top/front views. Place them in illustrator and start drawing over them. Most things will be easilly produced with basic shapes. Others can be done using the brush tool.

Everything should have a shine. Use gradient tool.