Ulan Bator is a French ensemble led by guitarist Amaury Cambuzat. Quirky and austere compositions such as Haupstadt and Radio Disco already defined their brand of progressive-rock on debut album Ulan Bator (Les Disques Du Soleil, 1994), but the band came into its own with the all-instrumental mini-album 2 Degrees (Les Disques Du Solei) that defined their style as a synthesis of post-rock (loud echoes of Slint in Polaire), new wave (intimations of Chrome in Episcope and D-Press TV), and German rock of the 1970s (shades of Can and Faust in Sea-Room and Silence). The two discs will be later summarized on Polaire (CPI, 1998).

Vegetale (Disques Du Soleil, 1997) is a mature work in that vein. Lumiere Blanche (eight minutes), Fievre Hectique and Hart transcend rock music as chamber music of the fin de siecle, and the surreal exotica of Cephalopode and Embarquement (seven minutes) is a momentous achievement.

The production of Mike Gira turns Ulan Bator's second full-length album, Ego Echo (Young God, 2000), into an organic flow of ambient drones and psychedelic noise. The compositions are now lengthy, slow and majestic. The orchestration is thick and sometimes thundering (harmonium, electric piano, Hammond organ, mellotron, trumpet, French horn). The atmosphere is not gothic but certainly awe-inspiring and occasionally gloomy, as the trio runs the gamut from the folk ballad of Hiver to the medieval madrigal of La Joueuse de Tambour, from Neu (Santa Lucia) to Talking Heads (Etoile Astre). Hemisphere and the 16-minute Let Go Ego are the tours de force. Soeur Violence and Echo further the analytical method by merging Edgar Varese, LaMonte Young and Labradford.

OK KO (Ursula Minor, 2002) offers eight "alternative" versions of those tracks.

Nouvel Air (Disques du Soleil, 2003), the first album without founding member Olivier Manchion, marked a retreat towards the song format. This album is far less about the band's music and Amaury Cambuzat's poetics than about production technique.

Ulan Bator still released: Rodeo Massacre (2005), Tohu-Bohu (2010), En France/ En transe (2013), Abracadabra (2016), and Stereolith (2017).

Amaury Cambuzat, also a Faust guitarist, released Rec.Requiem (which collects four pieces recorded in january 2019), AmOrtH (2019), that mainly contains the 40-minute title-track, Inside The Cathedral Sessions (improvisations for guitar and effects as broadcasted weekly on YouTube) and I Feel Like A Bombed Cathedral (2019).