In the video footage below, DREAM THEATER's John Petrucci offers a preview of his lesson on how to play the band's new song, 'On The Backs Of Angels', on guitar. The full lesson can be found at Guitar World.

Due to overwhelming demand, Dream Theater have moved their Seattle show, scheduled for Tuesday, September 27th at Showbox SODO, to the Moore Theatre. Tickets are currently available at showboxonline.com and will go on sale through tickets.com on Friday, September 16th at 10:00am. Tickets will also be available to purchase at the Paramount Theatre box office.

The band's tour schedule is now as follows:

September

24 - San Francisco, CA - The Warfield
25 - Los Angeles, CA - Nokia Theater
27 - Seattle, WA - Moore Theatre
28 - Vancouver, BC - Queen Elizabeth Theatre
30 - Salt Lake City, UT - Kingsbury Hall

October

2 - Chicago, IL - Rosemont Theatre
3 - Royal Oak, MI - Royal Oak Music Theatre
4 - Pittsburgh, PA - Trib Total Media Amphitheatre
6 - Toronto, ON - Massey Hall
7 - Montreal, QC - Place des Arts
8 - Quebec City, QC - Pavilion de la Jeunesse
10 - Boston, MA - Orpheum Theatre
11 - Morristown, NJ - Mayo Performing Arts Center
12 - New York, NY - Beacon Theatre
15 - Albany, NY - The Palace Theatre
16 - Philadelphia, PA - Merriam Theatre
17 - Washington, DC - Warner Theatre
21 - Pompano Beach, FL - Pompano Beach Amphitheater
22 - Cleawater, FL - Ruth Eckerd Hall
23 - Orlando, FL - Hard Rock Live
25 - Houston, TX - Verizon Wireless Theater
26 - Austin, TX - Bass Concert Hall
27 - Dallas, TX - Verizon Theatre at Grand Prairie

January

23 - Helsinki, Finland - Icehall
25 - Stockholm, Sweden - Hovet
26 - Oslo, Norway - Valhall
27 - Copenhagen, Denmark - KB Hallen
29 - Poznan, Poland - Arena Hall
30 - Berlin, Germany - Columbialle

February

1 - Zwolle, Holland - IJsselhallen
2 - Dusseldorf, Germany - Mistubishi Electric-Halle
3 - Paris, France - Le Zenith
5 - Hannover, Germany - AWD Hall
6 - Offenbach, Germany - Stadthalle
8 - Glasgow, UK - Clyde Auditorium
9 - Manchester, UK - Apollo
10 - London, UK - Wembley Arena
12 - Luxembourg, Luxembourg - Rockhal
13 - Stuttgart, Germany - Liederhalle
14 - Wettingen (Zurich), Switzerland - Sportzentrum Tagerhard
17 - Budapest, Hungary - Arena
18 - Vienna, Austria - Gasometer
20 - Pordenone, Italy - Palasport
21 - Milan, Italy - Mediolanum Forum
22 - Perugia, Italy - Palaevangelisti
24 - Barcelona, Spain - Palau St Jordi
25 - Madrid, Spain - Palacio Vistalegre
26 - Lisbon, Portugal - Coliseum

Dream Theater has revealed the official video for 'On The Backs Of Angels', which can be found on A Dramatic Turn Of Events. Check it out below: