This is a screenshot of my laptop. I use both Serato DJ and Cross DJ specifically because both allow the use of crates that are not buried in a directory structure or "tree". That, along with the color file encoding both have, allows for very rapid finding of songs (very important for me - a Gringo with poor Spanish language skills ). Note also Roberto Torres' "Caballo Viejo" is the long 7 minute original version, but has been "limited" in Audacity. Basically, an effect that cuts back the flute that tries to rip your ears out!