How to portrait nostalgia in music, from classical to Lo-Fi

What is Lo-Fi, how it connects with nostalgia and it´s used in classical music by Gustav Mahler in his First Symphony to give us *all* the feels. How Mahler mixes childhood songs like Frere Jacques, passing little town marching bands sounds and "low fidelity" orchestration effects to give us that deep nostalgia feeling. I also mention the awesome contribuitions of videos by Jaime Altozano around the topic of lo-fi and nostalgia, and by Two Set Violin around the topic of Mahler´s music. Link to those videos and the actual symphony below!

Jaime Altozano " Lo-Fi Hip Hop, la expresión de la nostalgia milennial" https://www.youtube.com/watch?v=WUnCaHYgmJc
Two Set Violin "If we could only listen to 5 classical music pieces..."
https://www.youtube.com/watch?v=XyD2VhyG4TQ&t=850s
Mahler´s First Symphony
https://www.youtube.com/watch?v=4XbHLFkg_Mw&t=1051s

This video uses small clips from Mahler´s First Symphony by the Frankfurt Radio Symphony and Viena Phillarmonic Orchestra, which are credited and used for educational purposes.

Видео How to portrait nostalgia in music, from classical to Lo-Fi канала How I Met The Opera