Te aconsejo que me olvides by Aníbal Troilo y Francisco Fiorentino. Beautiful, rhythmic, and flowing. A great example of dynamics to strong music.
El Adios by Osvaldo Pugliese y Jorge Maciel. Strong & exciting. Super dynamic and completely improvised.
Toda mi vida by Aníbal Troilo y Francisco Fiorentino. Watch for her incredible boleo and a surprise towards the end ?!