The mobile version of QQ Music has a function of "listening to songs and recognizing songs". After entering the main interface, there is a small note icon in the upper right corner, as indicated by the arrow in the figure below.

Click this small icon, and you will immediately enter the "Q-tone song exploration" interface. Open the music songs on the mobile phone, or aim the Q-tone song exploration on the mobile phone at an external sound source, and you can identify what songs.

The best way is to directly search for: Q-tone songs in the mobile app store, download and install this free software, and you can use it to distinguish songs directly in the future without logging in to QQ music.