Ability to specify the beat duration of the tempo marking
AFAIK, a tempo marking specification consists of the duration of the beat and the number of BPM, e.g. dotted quaver = 80. MuseScore doesn't support this. Note that this also means that the beat duration is independent from the time signature (unlike stated in http://musescore.org/en/node/12717).
Comments
MuseScore does support this. The text palette contains some examples. A "(dotted quarter) = 80" is interpretet as internal (midi) tempo 120bpm.
You can also right click on a tempo text -> Tempo properties -> determine tempo from text.
I close this feature request since it's already implemented. Feel free to reopen with more details if we missed something.
Tried the feature in the nightlies, the textual tempo markings are certainly there, but IMHO for a musician the most intuitive model would be that the duration of the beat is also an editable property of the tempo marking, and it can be displayed as text, not vice versa (i.e. the user has to find the duration among the symbols, and this text is parsed). For reference, see e.g. http://en.wikipedia.org/wiki/Tempo#Beats_per_minute. I also experienced that note durations shorter than eighth or longer than half aren't parsed correctly.