From Smartphones for All (draft):
In our family music has been problem-free entertainment. I think this is a general rule — music doesn’t show up on anyone’s list of smartphone concerns. Fifty years ago elders feared the corrupting influence of rock-and-roll, now that seems quaint. Music we can handle.
There are broadly speaking, 3 ways of getting music to an Explorer’s iPhone: iTunes sync, buying music from Apple Music, or using a streaming service. I’ll review each briefly with a focus on Guide support and costs, then I’ll briefly review Restrictions for music consumption.
The iTunes sync method of getting music to an iPhone is the oldest and potentially the least expensive — but it is now almost forgotten. It a Windows or Mac computer. With this approach a Guide assembles music files in Apple’s iTunes app, then the music can be copied (“synced”) to the iPhone, usually with a physical cable. The music can from a CD (by “ripping” in iTunes) or from a file collection that is not copy protected.
This iTunes method has three disadvantages. It requires a personal computer — and those are slowly going away. It requires an Explorer’s iPhone be physically connected. Lastly “ripping” large number of CDs is pretty time consuming.
iTunes sync has advantages though. If a Guide already has the music files, and is willing to disregard copyright laws or to buy and rip used CDs, the music is inexpensive. Listening to this music doesn’t use up expensive cellular data since it’s already on the iPhone.
There’s a variation on iTunes sync that eliminates the need for access to the Explorer’s iPhone. For $25 a year Apple’s iTunes Match service will provide internet access to an iTunes music library. In theory a Guide could use this to manage Explorer music without access to an Explorer’s iPhone. This is method may use up an Explorer’s cellular data though, and it’s more troublesome and complicated. If an Explorer is using iTunes Match a Guide will usually want to disable cellular data for Music.app, an Explorer will download the music over WiFi.
The second way to get music on an Explorer’s iPhone is to buy it from Apple using the Apple store. At $1.30 a tune this can be an expensive way to build a music collection. The music may be available to other users by a shared Apple Store ID or “family sharing”. This method will use cellular data unless initial downloading is done over WiFi. Some Explorers do enjoy making purchases this way and Apple Store purchases can be combined with iTunes sync. I reviewed how to manage iTunes store dollars in Smartphone choice and managing costs. In my family we share one App Store account and track credits and debits in a spreadsheet.
The third way to get music to an Explorer’s iPhone is through a “streaming service” like Spotify or Apple Music. These services typically cost $100 to $120 a year for the non-student and about $60 for students. Shared “family” plans can be more economical, Spotify makes it easy for up to 6 people to share streaming costs. Spotify also has a “free” ad-supported service, but it burns cellular data quickly. I don’t recommend it for most Explorers.
Streaming services will use up expensive cellular data unless music is downloaded over WiFi. WiFi downloading is easier to understand with Apple Music but Spotify supports it as well. If cellular data use is disabled in iOS restrictions most Explorers will quickly learn how to download over WiFi.
Spotify’s paid version (Premium) with cellular data disabled is the easiest and most economical solution for most Explorers — particularly if they can share an account with friends or family. Apple Music streaming is a bit simpler to use, but cost sharing is more restrictive. It’s a good alternative to Spotify.
 Or by local WiFi, but that method can be quirky.
 iTunes Match is also bundled with Apple Music for $120 a year. Apple Music can be shared with family for a higher fee, but iTunes Match doesn’t do family sharing. It’s complicated! Also, I think Apple is eventually going to discontinue iTunes Match.
 Historically building a music library was expensive, but many people bought used CDs or records for less