To get started with MusE why don't you visit the 
tutorials (https://muse-sequencer.github.io/docs/tutorials)

MusE can add effects in realtime for audio tracks,
check the effect rack on the mixer strip

For routing and selection dialogs that allow multiple selections
use ctrl when clicking to keep the dialog open

If you regularly make the same type of connections you can make a
template-project with all of your basic settings already prewired.
Just store the song as a template using the project dialog.

It's possible to create midi filters or generators in any
language, see instructions and examples under 
src/share/scripts in the source.

Click on the automation column in the track list to make
automation lines visible for a specific parameter.

Adding effects will add more automatable parameters to the
automation column.

Most functions in MusE are reachable from the keyboard.
See 'Keyboard Shortcuts...' under 'Settings'.
For instance: A - pointer, D - draw, R - erase, S - cut.
A full list of all shortcuts, formatted for printing (sort of)
is available from the Shortcut dialog.

Midi parts can be cloned. All clone parts contain the same data,
change one and all will be changed.

Parts can be copied and deleted using the standard cut/copy/paste
but it is also possible to click and drag parts to duplicate.
ctrl+click+drag to duplicate parts
ctrl+alt+click+drag to create clones

If it's hard to be precise while moving automation points with the mouse,
trying holding the SHIFT key, the movement will be slower.

During recording it is often useful to restart the recording since the previous
take wasn't perfect or you simply want several takes. While recording press
shift+space (default shortcut), a new track is created and the recording is
restarted from the initial position.
If recording was done on multiple tracks, all the armed tracks will be duplicated.

MusE 4.x defaults to connecting to Pulse Audio instead of Jack to ease startup
for new users. To connect to Jack change the default sound output on the
Audio configuration tab in Global Settings.
Or use the command line overrides to start the specific driver you wish to use.
