I think it's to Amazon's credit that the Echo smart speaker can be paired with various third-party music services -- particularly Spotify, which effectively puts all the music of the world (minus Taylor Swift) at your vocal fingertips.
I mean, Amazon has its own music service, and no doubt it would love to sell you even more music. Thankfully, if you're a Spotify subscriber, you can say to Alexa, "Alexa, play Brendan Benson's 'My Old, Familiar Friend' on Spotify." And presto!
Of course, having to tack on "on Spotify" every time you ask for music is a little cumbersome. Good news! It's now possible to make Spotify the default music source, thereby eliminating the need to say "on Spotify" after each music request. Here's how:
Step 1: Open the Alexa app on your phone or tablet.
Step 2: Tap the menu button in the upper-left corner, then tap Settings.
Step 3: Scroll down to the Account section and tap Music & Media.
Step 4: Tap Choose default music services. Under Default music library, tap the pull-down and choose Spotify. Then tap Done, then Done again and you're done!
Now, all music requests will default to Spotify. And if you prefer to listen to something from Amazon, just include "on Amazon Music."