Pitch Pipe feature

Seeing as these wearables and the app are made for musicians, they should be able to keep the pulse/beats and play reference pitches for us. I should never need to go outside of this app to hear any pitches. Think “Tonal Energy Tuner & Metronome. The Soundbrenner app (and wearables) should look to that as the standard and primary competition.

Changed the title from "“Pitch Pipe” feature" to "Pitch Pipe feature"