Small utilities, all of them local to your browser — nothing here uploads anything anywhere.
More is planned for after launch, and a section metronome is first in line: one that counts a twelve-slot bar in three and in six at the same time, so an armonía can hear which of its accents belong to which reading instead of arguing about it.
Anything that turns up here will follow the same rule as the rest of the site: it has to be about the ensemble rather than about an instrument. Tuners, neck charts and capo calculators already exist, properly, on the sister sites, and a worse copy of one is not a tool — it is a detour.