According to the dictionary, and opus is considered “one in a series of musical works”.  In the case of the Olive Opus No. 4 music server, this thing is capable of holding 2TB worth of musical works. 

That’s room enough for 6,000 CDs, which can be accessed from the full-color display, stored in a lossless FLAC format. In the back is a WiFi adapter, a left and right analog output, optical/coaxial digital audio outputs, as well as a USB socket and Ethernet port. 

Now how much would you pay?  Try $1,799, buddy.