Without a score and every time a bit different – a content extension for experienced musicians. In the 17th and 18th centuries it was common to improvise individual dances or even entire suites. The mastery of the harmony (the grammar of the musical language) and the understanding of the different dance forms and their rhythmic peculiarities were indispensable for this. This technique is especially natural for keyboards and other harmonic instruments (lutes, harps) but can also be practiced by players on melodic instruments (violins, flutes). Examples from Friderich Erhardt Niedt’s Musicalische Handleitung, among others, will be used to delve into this topic.