Answer:
25. The reason the same musical note sounds different when played on various instruments is because the harmonic overtones and envelope of each instrument is unique. When a frequency is played, other frequencies, called harmonics, are created. Each instrument has a unique harmonic character.
26.
27.
Islamic art encompasses the visual arts produced in the Islamic world. ... It comprises both religious and secular art forms. Religious art is represented by calligraphy, architecture and furnishings of religious buildings, such as mosque fittings (e.g., mosque lamps and Girih tiles), woodwork and carpets.
Ummmmm... A microphone is an example of a device that you can sing, and sometimes put autotune... I dunno?
:D
