rudiments.
a - The elements or first principles of a subject: The rudiments of grammar. b - A mere beginning, first slight appearance, or undeveloped or imperfect form of something: The rudiments of a plan."there is nothing rudimentary about their sound. Another band that makes harmonies work for them, The Rudiments have 60s beat inspired tunes with hooks and melodies to make you smile"The Rudiments Loft Session Jan'09