Yes, of course! You can use them in your clips.
: we would like to use two of your music for illustrate a clip on youtube. The purpose it's an election campaign in Normandy for a list with citizens who would like to change politic. For your song, It would be "Symphony No. 25 - 1st Movement (Mozart)" and the revenge of the viking and the clip would be online on youtube with your reference obviously. you can see us in Facebook jaimefalaise.
: Thanks for your answer