My main vice with the Dream Theater song is that I have to tune my bass down into C Standard and then play the 14 and a half minute song once or twice then tune it back up. I don't mind D Standard or Drop C. But tuning my first 3 strings down the extra whole step is inconvenient and my bass does not enjoy it. Which I understand those songs are going to come up, just a personal preference. Feels like there have been a ton of songs that are 6-7+ minutes lately.