(no subject)

Hello All!!!
I have a question request you help.
I have a file midi data format is: 5 byte a command
(1) (2) (3,4) (5)
21 91 3C4A 00
20 91 4050 00
0B 93 5147 0E
12 93 4546 10
20 93 5148 1E
byte (1) : note long time
byte (2) : Midi channel
byte (3),(4) : Note,volume of the note
byte (50 : time begin note
How are get tempo,Division,Time signature...?
Thanks.
dtphuong@kst.cinetvn.com