These classical pieces are public domain so it's completely legal to download the music here. Besides a wide variety of classical music downloads, you'll also find a large selection of free sheet music and free music theory textbooks available at Musopen. Types of Music Available at Musopen.
2. (foll by with) to associate (oneself) or be associated, esp as a subordinate or subsidiary; bring or come into close connection: he affiliated himself with the Union. n. a. a person or organization that is affiliated with another. b. (as modifier): an affiliate member.
In Active Directory, what is an organizational unit? An organizational unit (OU) is a subdivision within an Active Directory into which you can place users, groups, computers, and other organizational units. You can create organizational units to mirror your organization's functional or business structure. Each domain can implement its own organizational unit hierarchy.