That doesn't sound like much fun at all, and he asked to make both tasks enjoyable. And quite frankly, what fun is anything without good music? Let alone a desk job.
As it has been stated before, the Ether is basically a chameleon for whatever DAC/amp combo you are on. While I did not hear the Ether in a "quiet" environment, the show floor was quite slow when I listened. Ambient noise 40-50 dB qualitatively. With the Cavalli Audio Liquid Crimson, yes. Plenty smooth and musical for long listening sessions. I'd say that it had a very similar presentation in regards to "musicality vs. technicality" as the Mad Dog, which I'm, very familiar with. It sounds way better than the Mad Dog, but for that particular attribute I'd say that it falls on the same note. IMO, musical, but not exaggeratedly so. Still technical enough, but musical nonetheless, if I had to pick one. While I haven't heard the T1 or the LCD-X, I know that sound signature that you are in search of, for I too am in search of it. The Ether on the Liquid Crimson did it. Now, the Ether with the Rag/Yggy, personally, it was not smooth enough to get work done too and had too much of an "in your face" presentation. It didn't sound loud or clipped, just very articulate and not laid back, definitely middle of the road if not leaning to being more technical. Definitely a great rig, but not for what you plan to do with it. IMO of course.
While I haven't heard it myself, I've heard the Crack is pretty smooth, depending on the tubes. I don't know tubes. But whatever your Dac/amp combo sounds like is basically what an Ether will sound like through said system.