Some of the most beautiful music I've ever heard is below. Please feel free to share some of yours.
You don't have to be a Trekkie to enjoy this music.
Star Trek II - The Wrath of Khan
Track 22 - Epilogue - End Title
Star Trek III - The Search for Spock
Track 6 - Returning to Vulcan
Track 9 - The Launch
In summary, James Horner writes beautiful music.