However, the music on "Ecstasy" has been criticised as being "directionless and floundered about within the framework of songs which appeared to be only half formed ideas," which was due to the band's in-studio experimentation with different aspects of their guitar sound. In hindsight, Shields said that "even when we'd finished it we didn't like half the songs we'd done. The record never came out right and it made us realise that we were still too twee". In response to the band's "unwanted reputation for jangly feyness", My Bloody Valentine later incorporated elements of American indie rock music and Shields customised his guitars' tremolo systems, resulting in the band pioneering an alternative rock subgenre known as shoegazing. The term "shoegazing", which was considered derogatory, was coined by "Sounds" journalists in the early 1990s to describe certain bands' "motionless performing style, where they stood on stage and stared at the floor".