The alt-b command toggles display of the Verovio Humdrum Viewer logo in the VHV header.

Pressing alt-b will toggle the “Verovio Humdrum Viewer” logo in top left corner of the VHV interface:

toggling logo.
Showing/hiding logo at top of VHV interface.

This is useful for showing complete titles if they are long.

The VHV logo can be suppressed when loading a URL, by adding &k=b to the address:

toggling logo from URL.
Hiding the logo through the URL.

Use ?k=b if there is no ? already in the URL:

toggling logo from URL.
Hiding the logo through the URL without loading a repertory.