You can play along with the preset solo with the right hand or use that preset as a backing track to progression that you know. The keyboard will adjust and harmonize it for you. Last night with my wk 6600 on the preset.. your song,,,, which is Elton Johns song track I played in Eb the complete song and I sounds like his orchestra is playing with me.. Many of the presets reflect the orchestra of actural songs..I am truly amazed with Casio instruments...
Try playing Supertramp Song Logical, fools overature..or From the Dark Shadows Theme ...I play it everyday...