🎶

Music Notes and Time Signatures

Oct 5, 2025

Overview

This lecture introduces the basics of musical notes, focusing on note values (durations) and explains how they function within the 4/4 time signature.

Note Values and Durations

  • A note represents both the pitch and duration of a musical sound.
  • There are five main note values: whole, half, quarter, eighth, and sixteenth notes.
  • A whole note is an open circle and equals four beats.
  • A half note is an open circle with a stem; two half notes equal one whole note.
  • A quarter note is a filled circle with a stem; two quarter notes equal one half note, four equal one whole note.
  • An eighth note is a quarter note with one flag; two eighth notes equal one quarter note, four equal one half note, eight equal one whole note.
  • A sixteenth note is an eighth note with two flags; two equal one eighth note, four equal one quarter note, sixteen equal one whole note.
  • Note flags can be connected, and stems can point up or down without affecting duration.

Time Signature and Measures

  • The time signature appears at the start of music and consists of two numbers; e.g., 4/4.
  • The top number in a time signature shows how many beats are in each measure (or bar).
  • The bottom number shows what note value equals one beat.
  • In 4/4 time, four quarter notes complete one measure.
  • The terms "measure" and "bar" are interchangeable.
  • In 4/4, a whole note fills an entire bar, and a half note fills half a bar (two beats).

Musical Application Example

  • In the example from "New World Symphony," three measures of half notes are followed by one measure of a whole note.

Key Terms & Definitions

  • Note — symbol indicating musical pitch and duration.
  • Whole Note — a note lasting four beats.
  • Half Note — a note lasting two beats.
  • Quarter Note — a note lasting one beat.
  • Eighth Note — a note lasting half a beat.
  • Sixteenth Note — a note lasting a quarter of a beat.
  • Time Signature — notation indicating meter; top number = beats per bar, bottom number = note value of each beat.
  • Measure/Bar — a segment of time defined by a set number of beats.

Action Items / Next Steps

  • Practice identifying and drawing the five note values.
  • Review how different note values add up within 4/4 time signature bars.