Hearty Notes is the twenty-sixth album and the first one in which All 4 Members of Casiopea play Acoustic Instruments recorded and released in 1994. This style is referenced on an acoustic version of their 1983 Classic, "Lookin' Up", featured on their 1994 album, "Asian Dreamer", and again on Casiopea's "Seasons" from their 1996 Album "Flowers".