Website

You can change your track’s title and URL through the edit page. You can access the edit page at any time by clicking the pencil icon below the waveform:

Clear track titles help your fans know exactly what they’re listening to. Avoid duplicating information that’s displayed elsewhere. Track titles must be between 1 and 100 characters, and support for emojis is not available at this time. 

You can also edit your track via your new Artist Studio page (Tracks page) over here: https://soundcloud.com/artists. Just click the 3 dots next to the track in question, tap Edit and under Track details, you can change the track's title and URL.

Mobile

You can also edit your track title and URL on your mobile device with the SoundCloud app.

Android:

1. Just click on the track

2. Go to the edit section

3. Make the changes you want

iOS:

1. Just click on the tree dots to the right of your track

2. Select "Edit track" with the pencil icon.