I have chosen not to include singles that have been released with no extra tracks.
A somewhat complete list of singles released can be found below. These are the singles that Dream Theater have released. Some of them are digital only, others are promo only. There are many more promos than I've listed here, these are the more common ones. A more complete list of all promos is available from this site.
| Cover | Year | Song | Album | Type |
|---|---|---|---|---|
 | 1989 | Status Seeker | When Dream and Day Unite | Promo |
| 1989 | Afterlife | When Dream and Day Unite | Promo |
 | 1992 | Pull Me Under | Images and Words | Promo |
 | 1992 | Take the Time | Images and Words | Promo |
 | 1993 | Another Day | Images and Words | |
 | 1994 | Lie | Awake | |
 | 1994 | Caught in a Web | Awake | Promo |
 | 1994 | The Silent Man | Awake | |
 | 1997 | Burning My Soul | Falling into Infinity | Promo |
 | 1997 | Hollow Years | Falling into Infinity | |
 | 1997 | You Not Me | Falling into Infinity | Promo |
 | 1999 | Home | Scenes from a Memory | Promo |
 | 2000 | Through Her Eyes | Scenes from a Memory | |
 | 2003 | As I Am | Train of Thought | Promo |
 | 2005 | These Walls/Panic Attack | Octavarium | Promo |
 | 2007 | Constant Motion | Systematic Chaos | Promo |
 | 2008 | Forsaken | Systematic Chaos | |
 | 2009 | A Rite of Passage | Black Clouds & Silver Linings | Digital |
 | 2009 | Wither | Black Clouds & Silver Linings | |
 | 2011 | On the Backs of Angels | A Dramatic Turn of Events | Digital |
 | 2012 | Build Me Up Break Me Down | A Dramatic Turn of Events | Promo |
 | 2013 | The Enemy Inside | Dream Theater | Digital |
 | 2014 | The Looking Glass | Dream Theater | Promo |
 | 2014 | Illumination Theory | Dream Theater | Vinyl |
| 2015 | The Gift of Music | The Astonishing | Digital |
As you bring 
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@theo2london
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