+GLOSSARY
+Channel - In ordinary language, a channel is a path for passing data. In MIDI, channels are used to separate different sections of a song that are going to play together. Each channel is
+assigned to a single instrument in any particular instant of time. One channel is usually reserved for a percussion voice.
+Pitch - The property of a musical tone, determined by frequency.
+Sequencer - So called because such a program arranges melodic and harmonic patterns in successive positions. Strictly speaking, one should define a sequencer has something that stores note-on and note-off events in memory, then plays them back.
+Synthesizer - A device driven by a microprocessor, which contains a programmable chip. Examples of instruments that can control synthesizers: Guitar, keyboard, wind, string, drum controllers. The keyboard itself does not produce musical sound. A synthesizer circuit, built into the keyboard, accomplishes this function. Originally, a synthesizer was so called because it synthesized acoustic instruments. Nowdays, the term refers to the sound-
+generating circuitry of any MIDI gear. Another term is sound module.
+Time Signature - In traditional musical notations, this is expressed as a fractional sign, like 3/4. The denominator indicates the unit for the beat; the numerator shows the number of notes per measure.
+Track - In MIDI, the term "track" designates a location where one records or plays back a musical message usually a portion of the total arrangement. To illustrate, one might record an oboe melody line on Track Two, then record a bowed bass line on Track Three. When
+played, the sounds can be simultaneous. Most MIDI software now accommodates 64 tracks of music, enough for a rich orchestral sound. Important: Tracks are purely for convenience; channels are required.
+Transpose - To perform a musical composition in a different key. Both synthesizers and sequencers can carry out this function. Velocity The MIDI way of determining how hard a note is pressed on the keyboard controller.