How to develop a MIDI processing class with CPP?

is a parser, implementation of a MIDI file. A class, can read the midi and then manipulate the notes or tracks (adjust the length of the force or delete / insert the pregnant woman), and then export the midi.
No suitable one has been found at present. There are all kinds of bug

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b32084-2bdd5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b32084-2bdd5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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