Various film soundtracks

Trainspotting-

Instruments used were synthetic in some songs as they used default instrument sounds from a computer but in some of the older songs instruments were guitar,drums and piano.
The tempo of the music is quick when they are out clubbing or when something good is happening but when negative events occur the tempo slows down but the tempo overall is quick due to the mood of the film
The effect the soundtrack has is good as it shows the changes of music trend throughout the years the film is based in and also helps the film justify its target audience.

The Wolf of Wall Street-

Instruments used in these songs are computer generated in some of the newer songs used, but the instruments heard in the other songs are guitars, pianos , synthesizers, maracas and drums.
The tempo of all the songs throughout this film are upbeat and quick to signify the mood of the main character Jordan Belfort throughout the film and the music also helps shape the genre of the film and the audience that it will attract to this film as people often watch films as they're favorite song has been used in it.
The effect the soundtrack has on the film is positive as it helps shape the mood of the film and entices the viewer as a good film with a bad soundtrack would not entice the viewer so having the music this film has will ensure the viewer will not be disgusted.

Titanic-

The instruments used in the soundtrack for this film are guitars, pianos, flutes, harps, clarinets and tambourines.
The tempo of this soundtrack is slow as it is a romantic film so the tempo will not be fast as it will disrupt the events that are taking place during the film as the film is a slow film so the music used fits in with the style of film otherwise the music would not make sense with a fast paced film. The tempo is also slow to show the passion and love between the two main characters jack and rose so this a good use of music. The effect this soundtrack is good as it is emotional to fit in with the film so it builds up more emotion and the soundtrack helps Titanic become a tear jerker.

The Lion King-

The instruments used in this soundtrack are steel drums , flutes , guitars and pianos and an orchestra.
The tempo of this soundtrack is slow and fast as when the fight scenes take place between scar and musafa the tempo slows giving the tenseness to the atmosphere but when Simba is playing around in the wild the music is upbeat and happy to signify his mood.and when Timon and Pumba are together the atmosphere turns happy and the pace quickens but when musafa dies the music saddens. The effect the soundtrack has is positive songs from this film are well recognized  even though the music was made specifically made for this film but were mad by two great musicians Hans Zimmer and Elton John and the songs used are emotional at times but uplifting and happy most of the time.