This is the second full lenght album by spanish post core / experimental / drone trio iou3R following last years exceptional 'La Serp EP' (see reviews). It's conceptionally split in two parts - a Terra (Darker) and a Ceiling (Lighter) side, hence the title which evolved from both.
The Catalan troupe shyed no effort to surpass any expectations with this, f.e. female guest vocalists hailing from the theatrical scene recorded and interpreted the lyrics given to them freely, which then got incorperated in the material brightening the soundpool evolving out of synths, theremin, guitars, bass, percussion and samples. All tracks are segued into each other so the constant mutations and movements catch the listener as a whole experience.
Starting with "NEVED", an claustrophobic intro, dark ambience is paired with a dynamic and errupting female voice before "Me'l Duré" amazes with a lovely vocal intro and rockish structures which turn into an unexpected crescendeo not too far away from classic post punk.
A shorter version of the preceding EP's title track "La Serp" appears - here the darker atmospherics take over once more, brightened up by spoken words but filled with an unbroken tension.
The 'Sostre' side starts calmer; nearly meditative piano sounds broadening the mood before melancholy leaks in and transforms "El Caos" into "Inspiri/Expiri".
The final track "Arima Ito Duzu" features guest vocals by Karlos Osinaga (of Lisabö) - in Euskera, the eldest spoken language in Europe, while all other vocals are in Catalan, which leaves lyrically not very much clues for the rest of the world. Here iou3R are moving from a comforting alt rockish start to an postcore finale with an final emotional outburst as conclusion.
While 'SostreterrA' at first seems more accessible compared to their first 'Escornalbou' which kept the levels on a steady high it's strength lies in it's flow of diversity and contrasting sounds supporting each other.
iou3R master musical experience, a variety of styles, development and attitude in one go and instead of getting lost in possible sidetracks they know perfectly how to keep a listeners attention.
As a whole this album is just 36 minutes in total length and this is all they need to impress sustainable.
The vinyl version is available in just 200 copies but considering the care they take in everything surely well worth getting if you're into timeless and crossfading-genres music.