Demos
Sequencer (prototype)
A simple sequencer built with the Inventory.
This sequencer demo stretches the inventory a bit beyond its intended purpose; it uses the inventory to store music notes which are then played back using multiple AudioStreamPlayers that each tune a sample to a specific frequency.
This video compares a track created in Ableton Live, and its approximation in the inventory system.

Click to play
This is somewhat similar to how trackers such as Scream Tracker 3, Fast Tracker II, or Impulse Tracker worked. Open ModPlug Tracker is a modern version that works in Windows.
Note: The sequencer demo is included in the inventory system demo project, but shown here as a video due to AudioStreamPlayer changes for Web Exports in Godot 4.3.