Can someone please explain what this is?

Embellishments area. ornamental tones not printed in the music that seventeenth- and eighteenth-century performers were expected to add to the melody. b. music created at the same time it is performed. c. notes printed in the music that embellish the melodyd. obsolete in contemporary performances

Islamic lluminated manuscripts often preserved knowledge from which area of the world

Escoge uno de estos temas, escribe tu tesis y plantea 3 argumentos y 3 contraargumentos. a. control de natalidad de gatos y perros