He is known to have written the lyrics for the song "Tokotonyare-bushi" (the Go-all-the-way song, also known as "Miyasan, Miyasan" [My Lord, My Lord]), which was popular among the New Government army soldiers during the Boshin War.
戊辰戦争の際、新政府軍が歌った「トコトンヤレ節」（「宮さん宮さん」）は、品川が作詞をしたとされる。