Listen to Oh Dear! What Can the Matter Be (Instrumental Version) online. Oh Dear! What Can the Matter Be (Instrumental Version) is an English language song and is sung by The O'Neill Brothers Group, Bedtime Lullabies and Lullabies for Deep Meditation. Oh Dear! What Can the Matter Be (Instrumental Version), from the album Relaxing Piano Lullabies for Deep Sleep, was released in the year 2017. The duration of the song is 3:17. Download English songs online from JioSaavn.