[CM] tempo change in midi files

[Orm Finnendahl]

Hi,

I couldn't find any information about changing the tempo in midi files
according to some tempo map. I have a list of note events with time
and duration information in musical format (quarters, eigths etc.) and
would like to apply different accelerandos and ritardandos to this
data.

Con someone shed some light on this issue or point me to references? I
couldn't find any information in the dictionary etc...

--
Orm