Life In Mono is, in fact, a song by a completely different Mono - a triphop band from the USA (if I'm not mistaken) rather than the post-rock band from Japan.
If you're wanting to check out Mono, make sure to listen to their 'Walking Cloud And Deep Red Sky, Flag Fluttered And The Sun Shined' album, which is, imo, their masterpiece. On the Mono website (
here), you can download several songs, including the astonishingly beautiful Halcyon (Beautiful Days) from the aforementioned album - probably their best song. Their older work is great as well, but certainly noisier - although that's a rather relative term of course. However, the addition of strings on their later work even enhances the beautiful and pure melody found in their music. Anyway, just check them out!