Hazme Desaparecer starts with some lovely synth noises, and is soon joined by vocals. Almost EBM sound at start, but there is something nicer, and I think it's the application of the instrumentation. This is the way I appreciate vocals, when at times it merely accentuates the music itself. However, not understanding them, and considering I struggle enough with English, I feel puts me at a slight disadvantage in my viewing of the music as a whole. I could be missing a very important point!
Now the instrumental version (thanks:) starts off strong, and brings in beat building the synth towards a synth break, with snare drum. Beat comes back in to boost the signal and you're into a new section, with synthetic noises and the odd piano sound, work as the central piece. Then, there is another change in tone overall, it kind of steps back a bit, then chills, thoughtful. The reconstruction of the music seems different and breaks eventually into a chorus backing, aiming for crescendo. This it manages well. Interesting structure, like I said, that was enhanced first with vocals in a complementary fashion. Good track, and I appreciate some of the former vocals from track one.
Amas Muertas, starts with a storm of synth. The beat kicks in with flourishes of synthetic noises, almost tidal in structure. Then the rest of the rhythm kicks in and suddently you are in a very strong electronic track. Vocals come in with some beautiful electronic sounds about two minutes in, complemented by the voice. Into an instrumental solo, back to the strong track for, I guess, verse two. I could see this being used as a dance track, it has a different structure, but stands up well for itself.
At the end of the day, the language barrier aside, I think these tracks are good enough in themselves, and have to admit that some of the vocals actually emphasized the music in a beneficial manner as far as the overall sound. Give it a listen!-)