What makes Crystalised by The xx notable?

'Crystalised' became a standout track that garnered attention on international charts, reaching number 56 on the UK Singles Chart. The song's unique minimalist style influenced a wave of artists in the indie genre and contributed to The xx's reputation as innovators in blending electronic elements with traditional songwriting. When 'Crystalised' was released in April 2009, The xx was still in the early stages of their career, having formed just a year earlier. This debut single set the tone for their self-titled album, which would later receive critical acclaim and establish them as a defining act in the indie pop scene.