"Memo 5" appears to be an unofficial or alternative title for tracks associated with Ludovico Einaudi's 2019 project, Seven Days Walking
The project explores the variation of musical ideas over a week of walking in the Alps, with featuring specific variations of these recurring motifs. Separately, Einaudi has a new piece titled "Memory One" from his 2026 album Solo Piano upcoming 2026 tour Seven Days Walking / Day 5: Ascent - Spotify Ludovico Einaudi Memo 5