This is intended for a professional oboe player - it uses the entirety of the oboe range, from the low Bb, up to the second Ab above the staff.
It is written in part as a tone poem. The first movement establishes the tone, proudly proclaiming Atlantis. The second movement is more pastoral, though it is interrupted by the catastrophic flood. The third movement is the aftermath, pierced by delusional nostalgia, and finally a sense of moving on.
Please keep in mind that the MIDI recordings are not the best - at the end of the third movement, it kind of skips a little bit, but for the most part it's a fair recording.
Michael McClellan - Atlantean Rhapsody - Oboe Concerto - I:Allegro, Poco Presto, Presto sheet music - 8notes.com
Michael McClellan - Atlantean Rhapsody - Oboe Concerto - II:Adagio, Allegro con brio sheet music - 8notes.com
Michael McClellan - Atlantean Rhaspody - Oboe Concerto - III: Lento, Agitato, Lento, Molto Agitato, Lento sheet music - 8notes.com
Scores:
http://www.8notes.com/members/5521.asp?ftype=pdf
http://www.8notes.com/members/5522.asp?ftype=pdf
http://www.8notes.com/members/5523.asp?ftype=pdf