Gregorio Paniagua has been played on NTS over 10 times, featured on 14 episodes and was first played on 10 April 2017.

An expert in ancient music and early instruments, particularly the vihuela, lute, hurdy-gurdy, and viola da gamba. Founded Atrivm Mvsicae de Madrid (Atrium Musicae de Madrid) in 1964. In his private workshop, has reproduced musical instruments based on musicological researches into manuscripts, reliefs, sculptures, pottery and vase paintings from classical Greek to the Romanesque, Gothic, Renaissance & Baroque periods of Spain and Europe.

As Director of Atrivm Mvsicae, he has performed in Europe, America, Asia and Australia. Frequent collaborator in ancient music courses in Spanish and international universities and guest soloist performer in auditoriums, temples, cathedrals, theatres and museums.

His recordings have rated excellent reviews and achieved various awards, notably the Gold Record Award presented at the Japan International Art Festival, Tokyo 1971 for "Cantigas de Santa María- Alfonso X El Sabio".