This plugin transposes all MIDI tracks in the project at once. It is designed to help with the tasks of musical composition, not to automate it.
Master Pitch is an audio effect so you can load it into the master track. It does not process audio, it only sends the transposition signal to all Track Pitch plugins loaded in the project.
Track Pitch is the plugin that you must load in all the tracks that you want to transpose globally. You can load it into an empty MIDI track and save the track as the default MIDI track.
Each time a Track Pitch plugin is loaded, it receives the transposition information established in the Master Pitch plugin. If for some reason it is not received correctly, you can use the RESEND button to send it again.
The colors of the plugin automatically change to match the color theme of Live.
More info at: