First Section – Consonant Chords.Triads.

• triads – a chord with three tones
  • formed with two consonant intervals [third, fifth]
• fundamental tone [bass] – the lowest tones of the triad
• third – the middle tone of the three
• fifth – the highest tone
• triads are identified by their thirds and fifths
  • major triad – M3 and P5
  • minor triad – m3 and P5
  • diminished triad – m3 and d5