The Ctrl+Space shortcut for play/pause interferes with keyboard navigation as that's the exact key combination you'd use for multi-selecting in lists. Right now you can multi-select via keyboard if you navigate via Ctrl+Up/Down Arrow and then unpress Ctrl and press Space.
GNOME HIG suggests using Ctrl+Letter for shortcuts and Amberol uses Ctrl+P:
image
Fig: Shortcut dialog from Amberol
The `Ctrl+Space` shortcut for play/pause interferes with keyboard navigation as that's the exact key combination you'd use for multi-selecting in lists. Right now you can multi-select via keyboard if you navigate via `Ctrl+Up/Down Arrow` and then unpress `Ctrl` and press `Space`.
[GNOME HIG](https://developer.gnome.org/hig/guidelines/keyboard.html) suggests using `Ctrl+Letter` for shortcuts and Amberol uses `Ctrl+P`:

Fig: *Shortcut dialog from Amberol*