Hello Cecilio,
Saw your 'gadget' remark concerning a graphical metronome. As you know there are a lot of them on internet, free, freeware and commercial, but all of them look like technical lab-equipment except for this one, have a look at:
http://www.dirksprojects.nl/index.php?Lan=english&Page=base/home.php
Hope this is the type of metronome you have in mind?
The (MFC) program code...
2009-07-06 20:48:32 UTC in LenMus