I couldn't see the content like you can on Windows Explorer, I asked a "Genius" how to do it, and that's what he told me. Well, "Genius." In any case, I'd rather drag and drop on Explorer.
I hated using playlists. You might be a lot younger than me though, but back in my day we put one disc in (big black disc or tiny silver), hit play, then listen. That's the reason why I never really needed playlists - I just needed to browse by albums, even if not organized per artist. I have no use for playlists or shuffle play because they all come out like I'm listening to radio instead of an actual album, especially when many of the albums on my SD card are thematic if not outright concept albums that tell one story in each album. Even if it's the same artist, if I don't listen to just one album, I'll end up with two songs that sound completely different then have an interlude or intro to another album that supposedly melds into the next track but instead I get another interlude next.
One way to illustrate this generation gap of "i want it now and i'll get it now!!!" playback preference is when my friend's cousin asked for a recommendation on new music because he's bored with what he knows. I handed over my phone with Kamelot's Epica open, and then fifteen minutes later he tells me "it's like there's a story, but it's all disjointed and stuff." Lo and behold, he put it on shuffle. First time to listen to a new album, and puts it on shuffle, then says it sounds weird. In any case, there's the difference of what these two groups define as "doesn't sound like radio" - one group wants "play on demand" and get to the Last Song Syndrome-inducing tracks in an instant, the other group just wants to listen to the album instead of some highlight track that got a lot of airplay but the real best song on that album is the thirteen-minute track at the end.
If anything, back when I was using Apple I used the Playlist feature for connecting two concert albums. When I went Android, I just retagged them. Instead of "The Classical Conspiracy (Disc1)" with Track01 to 17 followed by "The Classical Conspiracy (Disc2)" with Track01 to 10, I did "The Classical Conspiracy" with Track 01 to 27. It seems like a lot of work, but I only had to do it once, and that was at the time that I ripped my CDs. After that, whether I rip CDs or download them, it's usually just 2mins to check and edit. The real problem when I did that in one afternoon was that all local albums here don't have the tags stored on an international internet database, and that's really what took me a loooooooooong time typing. Plus when I had to fill up which Chamber Orchestra played and who the hell the conductor is because some of my albums didn't have that - these weren't really important, but after all that I did that afternoon, I felt like I had to go all the way. What was annoying was how one album that prominently had the Conductor's name on the SACD label didn't have it on the internet database. It wasn't that much time to type in one name, just annoying that it wasn't tagged in the database when the SACD has "Sir Charles Mackerras" on large print under "Mozart." As for guest artists, I just looked up my tags again, and a lot of them actually tagged the guest vocalist or guitarist; however, since I browse and play by album, it doesn't cause any chaos in the track listing.
Basically, there are two type of people, and each of them need to stick to the one that works for them to prevent any headaches. For anyone on an iPhone, best stick with your iPhone or risk pulling your hair out. And for what? 100mW or more of cleaner power, which becomes unnecessary when you just use IEMs with 100dB++ sensitivity anyway. Not to mention the iPhones and iPads sound cleaner than the Samsungs I've used so far (yeah, there's the weird part - a lot of people like Apple for the software and interface, I just like the hardware - just look at the new Macbook with a battery cell larger than its motherboard).