In Standard Midi Files (SMF), there are not only performance information but also other information. For instance, there are such as song titles and copyright information. Meta Event is the source of this kind of information.

Followings are the options of Meta Events: Name Type Explanation Sequence Number 00 This is where you input song number. I haven't use this option much until now. So, I am not so sure about the use of this option. Text Event 01 This is where you input character string. You put such as memo here. Copyright Notice 02 This is where you input not only composer name but also company name that has copyright. If you are the composer, you put your name here. But it doesn't have the function to prevent from copying. You can delete this information by using sequence software. Sequence Name / Track Name 03 This is where you input song name or track name. There is no way to distinguish between song title and track name. But normally, information that is inside the first track is considered as song title. Instrument Name 04 This option is displayed as "Instrument Name" in sequence software such as XG-WORKS. Originally this option was to input instrument name, but it enables you to control the sound source. Normally, you can use up to 16 channels in MIDI. If you input "SC88A" or "SC88B" and then connect to Roland's SC88 series, you will be able to use 16 channels in A group and 16 channels in B group. So, you will be able to use 32 channels altogether. Lyric 05 This is where you input lyrics. MIDI files that are used for "karaoke" sometimes contains lyrics. But MIDI files of "karaoke" for business use, lyrics are not written here. They are written in other location. Marker 06 This is where you indicate each section of a song such as introduction, A phrase and bridge. MIDI files for converting into ringtones sometimes have information to loop a song. This is called a loop point. Cue Point 07 This is where you indicate some timings of a song. MIDI files for converting into ringtones sometimes have information to loop a song. This is called a loop point. MIDI Channel Prefix 20 This option is used for specifying channel by meta event or system exclusive. But I haven't use this option much until now. End Of Track 2F This is located at the very end of a track. I think that most of us have nothing to do with this option, except for programmers. If you open a file by sequence software, hear nothing in spite of the sound has faded out, and the track still goes on, you will find that this is because the time to the end of track is long. Set Tempo 51 This is where you input tempo of a song. You will find that it is displayed in BPM by sequence software, but it is written in other form inside the program. SMPTE Offset 54 This option is for setting information that you will use in Society of Motion Picture and Television Engineers (SMPTE). But I haven't used this option much until now. Time Signature 58 This is where you set time such as 4/4 and 3/4. Since denominators only take multiple of 2, you cannot specify time such as 6/7. Key Signature 59 This is where you input key information such as C major and A minor. This option is used only for displaying notes. So, even if you change the value of this option, sound will not be transformed. Sequence-Specific Meta-Event 7F "Sequence-Specific Meta-Event" will be displayed in sequence software such as XG-WORKS. This option is prepared in order to use it by each individual sequence software. Sometimes you will find information for controlling mobile terminals are embedded in MIDI files for creating ringtones.