Please help me with the following.

Problem. You are requested to design a unique music box that generates pre-defined tunes in a different way, in comparison to the music boxes in the market.

(1) Benchmark 3 existing music boxes in the market, which runs very differently to generate music tunes. Briefly sketch and explain how it works.

(2) Among the above three products, what do you like the most and least? Why?

3) Draw Blackbox model of the music box you will design.

(4) List the most important 3 sub-functions and draw a morphological matrix.

(5) Sketch your new music-box that may be successful in the market.