7 - Leisl, Freidrick, Louisa, Brigitta, Kurt, Marta, Gretl
7 children
Capt. Von Trapp in "The Sound of Music" had 7 children.
Sound of Music The King and I
In order to download the Sound of Music without violating copyright laws, the movie would have to be purchased. Their are many different providers such as iTunes that will sell the movie for a price.
There are many actors and actresses in the movie The Sound of Music, but I assume you mean Maria and Georg. Maria is played by Julie Andrews and Georg is played by Christopher Plummer.
Many times, music is played as a part of what is known as the film's "sound track." In many instances, this music is known non-diegetic, that is to say, there no visible source for the sound within the film's story. Diegetic sound is sound that comes from the story, like as an actor strums a guitar.
Strictly speaking, many of the silent films were issued with sheet music so that theatre owners could present music along with the film, but by "sound track" I will assume you are referring to recorded sound that was synchronized with the movie. The WB film Don Juan (1926) was distributed with a Vitaphone sound track, consisting only of music and sound effects, but this probably fits your definition. The Jazz Singer (1927) had Al Jolson's singing parts (and music) on a soundtrack recording, but no recorded dialog, but it caused a sensation and is widely cited as the first "talking movie". Lights of New York (1928) was the first movie shown with a full soundtrack, including all dialog parts. All of these were Warner Brothers films.
there are seven children in the Von Trapp family
Incorporating many different kinds of music into one sound track
Many sounds are recycled in movies and music. See, Willhelm Scream.
There were many different timbres but they all were voices if I remember correctly.
The lyrics for "So long farewell" are from a song in the movie The Sound of Music. The name of the song is So Long, Farewell and is one of many popular songs from that particular movie.