Progressive Piano Repertoire, selected and edited by Keith Snell This attractive collection of mid-elementary level piano solos from the 18th to 21st centuries are arranged in order of difficulty. It is appropriate for any age student and may be used independently, or as a supplement to any piano method. While specifically designed to follow Beginning Piano Repertoire (GP449), it leads well into Favorite Piano Repertoire, Book One (GP461) or Level Two of Keith’s Piano Repertoire (Baroque & Classical, Romantic & 20th Century) or Essential Piano Repertoire series.