I've started wondering this, too. I've noticed with my channel that there are people who don't play music and only watch the music videos, but then others who only want tutorials, and some who watch both. o.0 I want to add more personable stuff and more laid back stuff, but maybe it should go on a different channel? I think if you posted content on a regular basis/predictable days, it would be fine having it all in one channel, but since Music Videos take longer than tutorials and stuff, it naturally won't be predictable.
At the same time, channels that only put the same kind of polished content on one channel start to feel a bit monotonous... The content might be fantastic, but the "same stuff, different video," feeling starts to creep in and their content begins to get a bit old. I like hearing the creator talk about things they are interested in and often find myself watching their behind-the-scenes channel more than the original one. I think they sometimes would have done better to keep all of it on one channel because it adds diversity.
I think I would try to divide the channels up into as few groups as possible, but make sure the content on them is still related to the audience you have defined. Music and gaming walk-throughs are nowhere near related and would need separate channels, but music and music production tutorials go together well because a lot of viewers are curious how it is done -- even if they aren't going to get into doing it themselves. The exception would be if you want to start posting only music production tutorials for the next 6 months and stop posting what the subscribers originally subscribed to. If that were the case, I'd make a separate channel. ^^
Even video production could squeeze in with a music channel if it is related to a music video that was made. Documentaries would probably need to go on a different channel unless it's related to music somehow. However, I liked how Boyinaband was able to incorporate really different subjects and video styles into his channel and keep things interesting. He had his music stuff, and a few tutorials, and then made a lot of talking videos regarding his views on subject that were very unrelated to music. He made it work, and his channel was a lot of fun to watch. ^^
At the same time, channels that only put the same kind of polished content on one channel start to feel a bit monotonous... The content might be fantastic, but the "same stuff, different video," feeling starts to creep in and their content begins to get a bit old. I like hearing the creator talk about things they are interested in and often find myself watching their behind-the-scenes channel more than the original one. I think they sometimes would have done better to keep all of it on one channel because it adds diversity.
I think I would try to divide the channels up into as few groups as possible, but make sure the content on them is still related to the audience you have defined. Music and gaming walk-throughs are nowhere near related and would need separate channels, but music and music production tutorials go together well because a lot of viewers are curious how it is done -- even if they aren't going to get into doing it themselves. The exception would be if you want to start posting only music production tutorials for the next 6 months and stop posting what the subscribers originally subscribed to. If that were the case, I'd make a separate channel. ^^
Even video production could squeeze in with a music channel if it is related to a music video that was made. Documentaries would probably need to go on a different channel unless it's related to music somehow. However, I liked how Boyinaband was able to incorporate really different subjects and video styles into his channel and keep things interesting. He had his music stuff, and a few tutorials, and then made a lot of talking videos regarding his views on subject that were very unrelated to music. He made it work, and his channel was a lot of fun to watch. ^^