(Beginning Piano Solo Songbook). Hal Leonard Beginning Piano Solos are created for students in the first and second years of study. These arrangements include a simple presentation of melody, harmony and simplified rhythms. Songs in this book include: Ac-cent-tchu-ate the Positive * Don't Worry, Be Happy * Happiness * Happy * Happy Together * High Hopes * Lovely Day * Octopus's Garden * Singin' in the Rain * You Are My Sunshine.