(4, 5, 6, 7, 8 F Horns (1st to 4th parts obligato & 5th to 8th parts optional)) (Piano / Keyboard, Bass Guitar, Percussion & Drums (optional)) (Neuheit Horn) This collection offers an innovative and flexible solution for ensembles, enabling them to adapt to a variety of formations depending on the number of musicians available. The works have been specially designed to be performed by a minimum of four musicians, with voices 1, 2, 3 and 4 considered mandatory to guarantee the musical integrity of each piece. However, the collection is distinguished by its flexibility, offering the possibility of adding additional voices (5 and/or 6 and/or 7 and/or 8) to enrich the arrangement when more musicians are present. This modular approach makes these works ideal for variable-geometry ensembles, whether small groups or larger ensembles.