This manual covers the technical and musical skills acquired in the 4th year of Music Training. Each chapter is centered around the same fundamental concept, whose increasing difficulty requires study over two, or even three weeks. In general, it will be very beneficial to use, during Music Training classes, alongside the voice, the instruments practiced by the students. Every exercise must first be sung and then played, whether it is melodic or rhythmic memorization, rhythmic readings with or without note names, or sung readings; only note readings will be spoken. This approach to music training, linking theory to the instrument, is very beneficial for the student as it allows continuous progress through the instrumental realization of their knowledge. Naturally, depending on the instruments, it requires some adjustments on the part of the teacher.