Syuzi @ Fashioning Technology writes:

E-textiles are a phenomenal medium to explore novel musical interfaces. From the commercially available Air Guitar T to a pair of DIY drum kit jeans, to date there are numerous examples of creative instruments that explore unorthodox interfaces.

What sets the Midi Hat apart from the rest (other than the downright cuteness factor) is that the Midi Hat is a collaborative musical interface that allows participants to compose music together. It is the nature of this collaboration, along with the whimsical interface design, that makes this musical instrument quite a delight to play.

The musical performance hats shown were designed by Sunny Oh and Anna Obikane. The felt puffs are sensors built with steel wool.