
De Facto was the middle-ground between At the Drive-In and The Mars Volta so to say, featuring Cedric (initially bass, primarily drums), Omar (bass/vocals), Ikey (keys), and Jeremy Ward (sound manipulation, guitar, vocals) doing dub-reggae music.
'456132015' was an EP from 2001, featuring two versions of "120E7" plus "Vesica Pisces", both reworkings from their final album of the same year, 'Légende du Scorpion à Quatre Queues'.
As far as I know the project is still being considered for new material, even with the unfortunate passing of Ward in 2003.