Version 2.0 for macOS
The Role of the MusicalConductor App
MusicalConductor is an iOS app that acts as a gamepad for your Espressivo application. It uses the motion sensor to control musical elements such as tempo, velocity, and articulation. Furthermore, it offers a number of buttons to remotely control the application.
How Do I Establish a Connection?
The MusicalConductor app communicates over Bluetooth with the Espressivo application. To establish a connection, the app needs to advertise its service and the counterpart must scan for this service.
How Do I Assign Input Elements to Musical Elements?
You don’t. The assignments are left to the Espressivo application. The MusicalConductor app just offers buttons and a sensor. This is similar to a gamepad.
It is the Espressivo application’s responsibility to assign input elements to musical elements. All settings and changes are propagated back to the MusicalConductor app. In our case, Button 2 is assigned the Start/Stop function and a rotation around the X-axis is used to control the tempo.
By the way, the three components of the sensor are passed as an angle around the X-axis, as an angle around the Y-axis and as the overall acceleration value.