Open the song and tap the pencil at the top right, then tap Edit. On Mac and Windows you can also press Cmd-E (Ctrl-E).

 

A song carries four pieces of information: the Title, the Composer, the Style (a text label describing the feel, not the player's accompaniment style), and the Key, which must be the key the chords are in as they appear in the Editor.

 

On iPhone and iPad, tap the i button in the Editor to edit these fields, or press Cmd-I with an external keyboard. On Android, tap the i button. On Mac and Windows, the fields are in the Editor panel to the right of the chart.

 

For more, see Create a song on the iReal Pro website.