"Shiki no Uta" is Jun Iida's jazz interpretation of the iconic theme song from the anime series Samurai Champloo, featured on his 2023 album Evergreen. The original was composed by the legendary hip-hop producer Jun Seba, known as Nujabes, with vocals by Minmi (Michiko Kuwano), and became widely recognized through the show's 2004 broadcast. Iida's arrangement reimagines the track in B-flat minor with a straight-eighth feel at 82 BPM, retaining the song's melancholic beauty while recasting it in a jazz setting built on a 16-bar form. Iida takes a single-chorus trumpet solo that captures the bittersweet essence of the original melody, his improvisation threading through the harmonic structure with measured restraint and emotional depth. The choice to include this particular composition on Evergreen reflects a broader trend among younger Japanese jazz musicians who draw inspiration from anime soundtracks and hip-hop, genres that share deep connections with jazz through sampling and harmonic language. Nujabes himself was renowned for his extensive use of jazz samples in his productions, making this jazz reinterpretation a fitting tribute that brings the music full circle. The arrangement honors the contemplative mood of the original while demonstrating how the melody functions effectively as a vehicle for jazz improvisation within its compact 16-bar framework.