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getTempo()

Description

Function to read the tempo of the host software.

Available in: Processor.

Return Values

Returns the current tempo in beats per minute (BPM). If no tempo information is available, this function returns the value -1.

Example

-- print the playing speed of subsequent notes in percentage of the host tempo
local T = {}
function onNote(event)
    postEvent(event)
    T[2] = getTime()
    if T[1] ~= nil then
        speedInPercent = 60000 / (T[2] - T[1]) / getTempo() * 100
        print(string.format("%.1f %s", speedInPercent, "%"))
    end
    T[1] = T[2]
end

See Also: getTimeSignature

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