Of course, I should have checked YouTube before I wrote about Alfredo 'Tape' Rubín. Everything's on YouTube these days, on seven year-old YouTube.
Here's one I liked a lot. It's a performance in a small venue, with a back projection. The song is Calle, Street, from the 2004 Reinanoche album. To judge by the back projection it's about what happens in the street, and the captions suggest it's about political protest during the military period. ('Los 30 mil', I guess refers to the desaparecidos.) I can't follow the words well enough to check that, although the they are fairly clear. (An advantage of not having a full tango orquesta.) It's well put together, and a beautiful song. & a cool cat wanders across the stage.
(Thanks to Tinch77 )
& this one is unplugged, on someone's patio, with a pink watering can; life in the city. An alfresco, spontaneous performance, without amplification, with the drawback and strengths that brings.
I shouldn't have compared him to Goyaneche, but there's something about his delivery, the emphasis of the spoken voice rather than an actual singing voice. His voice is light compared to 'El Polaco', but I still think it's a good tango voice: that is, it has heart, it has conviction, it has passion. Whether it is in some abstract sense a 'good' voice is irrelevant.
(Thanks to Puentealsina)
Could you dance to this? You might not want to dance to Calle, but there's danceable music too. Without the steady beat of a bass, piano and bandoneons maybe it's harder to think about, but there are tracks on the CDs that make you (i.e. me) want to try. Tango began like this, guys with guitars writing songs for the people. The arrangers and orquestas came later. Hunt around on YouTube, there are more.