Discussion Before the 17th century, both musicians and composers did not congregate for large ensembles aside from church programmed music, such as masses and requiems. Improvements in music notation and the exploration of Ancient Greek music allowed for more music composed and more players or singers. Composers began writing music for multiple string voices with harpsichord accompaniment. Oratorios and cantatas were created combining those ensembles with full choirs and solo singers. Clearer notation rules allowed for more complex music to be composed for larger ensembles. One of the biggest shifts was moving away from the church modes into the major/minor scales we're familiar with today.