Professor Emeritus John Roberts recently tripped over an important discovery that others had missed, an early version of Handel’s cantata Tu fedel? tu costante?, HWV 171, when examining a manuscript from a collection belonging to Dutch keyboard player, conductor, and collector of music scores Ton Koopman.
Three of the four arias in the cantata were completely new, likely to be written in 1705 or 1706. Koopman conducts the cantata in Amsterdam on April 9. Professor John Roberts plans to attend.