Groovin' In 4/4 Time for Rock & Jazz is the 3rd book in a trilogy. The other 2 books include Groovin' in 5 and Rock Grooves in Odd Times. A special design allows drummers at all levels to read and play the grooves with confidence and ease. Each groove is first notated for the cymbal and snare alone. A series of bass drum patterns is then weaved around the cymbal/snare patter producing a great sounding rock or jazz beat. By the time you complete the book you'll have hundreds of groovy rock and jazz beats at your fingertips, useful at various tempos in all kinds of situations.