Currently, the tango music collection of DJ Matías consists of ~2.000 original albums, i.e. commercial pressed original CDs (compact discs), which amount to ~40.000 original recordings gathered from record companies virtually from all over the world. The broad majority of the releases covers genres usually performed at a traditional milonga, i.e. tango, milonga and vals cruzado.
The collection also comprises recordings of musical styles which are rather rarely played like candombe, tango-milonga, canyengue, foxtrot, polca and ranchera as well as contemporary trends like neo- and electrotango. The collection is spiced up with a selection of Argentine folklore (chacarera, zamba, gato, escondido, etc.) and the greatest hits of rock nacional (Argentine rock).
The world-wide best audio quality for tango music is provided from transfers of shellac (78 r.p.m.) recordings made by collectors in Tokyo (東京), Japan (日本国). The collection of DJ Matías features three excellent (and nearly complete) series of the most famous Japanese collectors:
These unfiltered shellac transfers stand out due to:
Deteriorating sound manipulation techniques like:
are completely avoided.
Good audio quality is provided by the well-known Argentine releases of commercial record labels:
High-quality releases from record companies based in other countries like:
provide impeccable sound quality and are featured in the collection as well.
Semi-professional releases of private tango clubs such as:
offer a variety of interesting collector editions and often provide rare recordings in good quality.
Labels notoriously known for their low audio quality and erroneous discographic information like:
76 / 158 original albums
≈ 48 %
20 / 54 original albums
≈ 37 %
15 / 27 original albums
≈ 56 %
15 / 52 original double albums
≈ 29 %
9 / 15 original albums
≈ 60 %
are only utilized if they provide recordings that are elsewhere not available.
Pirate releases from bit-torrent sites or file hosting services usually exhibit low-bitrate audio file formats and consistently deliver extremely poor sound quality. Consequently, these miserable recordings are – irrespective of legal considerations – excluded from the collection.