Well I spent a significant amount of time practicing the fundamentals of music. I played many scales and arpeggios (chords). I turned them into patterns and exercises. I played major and minor scales. I played them from memory as well as sight read the scales and patterns. I would play many different patterns and piece them together in different ways. I played them high, play them low, play them staccato, play them legato, play them whole notes, half notes, quarter, etc.