A drum furiously hammers out notes on his instruments as he plays on stage.
Someone is playing an instrument on a stage.
On one grand boulevard, the Paseo del Prado, are three of Europe's finest  the world-class Prado museum, the Thyssen-Bornemisza collection, and the Centro de Arte Reina Sof?­a (Queen Sof?­a Art Ceter), whose claim to fame is the 20th century's most famous painting, Pablo Picasso's Guernica.