Tempo and BPM can be entered as you like.
There is no implied maximum to the BPM (well, above 1200 BPM = 20 per second it would become an audible sound, so that's the maximum).
With the up/down arrows in the input field the stepsize is 5, but you can manually enter any value.
With BeatsPerSequence you can, uh, you should understand this by yourself...
Per Beat you can play it once with the play button or, by right-clicking, start playing the sequence from there.
With the "I" button you can insert a new beat before the current one.
By right-clicking you can force a row break in the layout on the screen, i.e. force this beat to be displayed as the first of a new row.
With the "D" button you can delete a beat.
And delete means delete. It's gone. Irreversibly. There will be neither an "Are you sure?" confirmation nor an "undo" option.
By right-clicking you can remove a forced row break.
With the ⇆ button you can move a beat to the right.
Below these buttons the first assigned sound name is shown. Hover the mouse pointer over it to show any more sounds assigned to the same beat if any.
With the Set and Add buttons you can initialise the beat sound to the one selected below or add the selected sound to the beat.
You can for example first set it to a chord played on the piano and then add a cymbal sound.
I didn't programme any limit to the number of sounds you can add.
The beat volume can be adjusted (per beat, not per individual sound of a beat).
By clicking on the
fields you can define the beat color (useful when using this page as a light metronome by simply muting the main volume).
You can define each individual beat duration and I didn't programme any duration check,
except that both numerator and denominator should be at least 1.
You should do your own correct calculations, making it fit in the measures.
If, for example, you want to change a two-quarter rithm:
(having a duration of 1/1 each, adding up to a total of 2 integral beats), to a dotted quarter plus an eighth,
which is one-and-a-half beat plus a half beat:
then you must set the durations to 3/2 and 1/2, also adding up to the value of 2.
In the Available Beat Sounds box you can select a sound set and then play or select each of the sounds in that set.
You have to first select a sound before assigning it to a beat.
Ctrl+Space = Start/stop playing;
Ctrl+Up/DownArrow = Increment/decrement Beats Per Minute;
Ctrl+2,3,4 = Set predefined standard 2, 3, or 4-beat sequence.
If it does not function as it should, then most probably you are using an unsuitable browser or messed up its settings...
And Chrome's timer slows down to max. 60 BPM if this is not the Active Tab. Not my fault. Consider it a "feature"...