we are developing a game for nokia 3410,6310i,3510i,6610,7210
an come to some problem with music in our java-code!

we have converted a single channel midi file using the nokia converter (nokia dev.suite1.1) and integrade it into our code.
music playing on all devices but its sounds like that the speed sometimes is fast and sometimes its slow. also some notes missing we think.

is it a midi problem - are there some guidelines to compose music for nokia phones? we only found a beatnikinfo pdf for the new midi-phones.

so, what is the best way to convert a midi file to a OTT string for using in java? are there any documents ?

it will be very great if somebody can help us