Sentence:  John Frederick Peter, born in 1746, left behind him an ambitious work, dated 1763, entitled "Partitur einer Freuden Music zum Friedens Dank Feste", scored for four-part chorus and strings, two flutes, two trumpets and <WSD>fondamento</WSD>." 
Meaning of the word marked with <WSD> tags:  An instrumental bass part that forms the basis of the melody, and against which other instruments provide harmony.