Growing Wings is the theme music of Twin Seeds and the first theme of Bellbridge.

Growing Wings is used in part in a great many of the themes used in NiGHTS into Dreams, specifcially themes used that involve or represent NiGHTS him/herself. 

Growing Wings breaks into Nights and Reala (Reala's boss battle theme) and the two themese then proceed to fight.

Snipets of Growing Wings play at the begining of D'Force Master.  And Growing Wings is essentially the basis for "Message from Nightopia".

Dreams Dreams itself utilizes a slowed version of Growing Wings as the basis of it's melody.

NiGHTS into Dreams...

Selph, the deleted boss for NiGHTS into Dreams, utilizes the theme "Know Thyself" which resembles a "battle theme" version of Growing Wings.

NiGHTS: Journey Of Dreams

In NiGHTS: Journey of Dreams, Growing wings is the first theme of Bellbridge.  The Second theme utilizes parts of Growing Wings as well as Dreams Dreams.  Growing Wings also once again shows up in the theme used for the Nights and Reala battle.