rockbox/manual/plugins/metronome.tex

\subsection{Metronome}
This plugin can be used as a metronome to keep time during music
practice. Adjust the tempo through the interface or by tapping it out
on the appropriate button.

\begin{btnmap}
    \PluginExit
       \opt{HAVEREMOTEKEYMAP}{& }
        & Exit plugin \\

    \PluginCancel
       \opt{HAVEREMOTEKEYMAP}{& \PluginRCCancel}
        & Start / Stop \\

    \PluginSelect
       \opt{HAVEREMOTEKEYMAP}{& \PluginRCSelect}
        & Tap tempo \\

    \PluginLeft{} / \PluginRight
       \opt{HAVEREMOTEKEYMAP}{& \PluginRCLeft{} / \PluginRCRight}
        & Adjust tempo \\

    \opt{scrollwheel}{\PluginScrollFwd{} / \PluginScrollBack}
    \nopt{scrollwheel}{\PluginUp{} / \PluginDown}
        \opt{HAVEREMOTEKEYMAP}{& \PluginRCUp{} / \PluginRCDown}
        & Adjust volume \\

    \opt{h100,h300,e200}{
      \ButtonRec
        \opt{HAVEREMOTEKEYMAP}{& }
        & Sync tap \\}
\end{btnmap}