Bar — a division of music occurring between two barlines (also called a "measure").
Barline — vertical lines dividing a piece of music into equal sections called measures or measures.
Chord — a combination of three or more different notes played together.
Clef — a sign placed at the beginning of each staff of music which fixes the location of a particular note on the staff, and hence the location of all other notes.
Common time (Q) — an indication of * time — four quarter note beats per measure.
D.C. al Fine — a repeat from the beginning to the word "Fine".
Eighth note (5) — a note with the value of half a beat in * time, (also called a quaver).
The eighth note rest (j) — indicates half a beat of silence.
Half note (1) — a note with the value of two beats in * time (also called a minim). The half note rest (g) , indicating two beats of silence, is written on the third line of the staff.
Key — describes the notes used in a composition in regard to the major or minor scale from which they are taken; e.g., a piece "in the key of C major" predominantly consists of the notes, C, D, E, F, G, A, and B — i.e., from the C scale.
Key signature — a sign, placed at the beginning of each stave of music, directly after the clef, to indicate the key of a piece. The key signature consists of a certain number of sharps or flats, which represent the sharps or flats found in the scale of the piece’s key.
Ledger lines — small horizontal lines upon which notes are written when their pitch is either above or below the range of the staff.
Major scale — a series of eight notes in alphabetical order based on the interval sequence tone – tone – semitone – tone – tone – tone – semitone, giving the familiar sound do re mi fa so la ti do.
Melody — a group of notes of varying pitch and duration, having a recognizable musical shape.
Metronome — a device which indicates the number of beats per minute, and which can be adjusted to any tempo.
Minor Scale — a series of eight notes in alphabetical order which define a minor key.
Note — a single sound with a given pitch and duration.
