I have got amazon echo dot and the amazon echo app, I have set Spotify as my default service in the amazon echo app. But I have got the Spotify app is a free service, When I asked Alexa play dancing queen by abba, it play rock station a rock station like

Yes, the issue you're experiencing with Alexa playing a radio station instead of the specific song "Dancing Queen" by ABBA is likely due to your free Spotify account. Free Spotify accounts have some limitations, such as the inability to play specific songs on demand; they can only play playlists, albums, or stations. However, you can still try asking Alexa to play the song with the request: "Alexa, play 'Dancing Queen' by ABBA on Spotify." There’s a chance that the request may not go through if you’re using a free Spotify account, as it typically defaults to playing a related radio station or playlist instead. If you want to have the ability to play specific songs on demand, you may need to consider upgrading to a Premium Spotify subscription. Update (2026-01-01): Yes, the behavior you're experiencing is likely related to the limitations of the free Spotify service. When you use the free Spotify account, there are restrictions, including the inability to play specific songs on demand; instead, you may be directed to a station or playlist that features that song or similar music. If you say, "Alexa, play 'Dancing Queen' by ABBA on Spotify," it may still not work as expected if you're using a free Spotify account, as the free service typically doesn't support on-demand playback of specific tracks. Instead, you may hear something like a radio station or playlist that includes that song. If you want to play specific songs on demand, you would need a Spotify Premium account.