 Feeder returned to the studio to record their fifth album Pushing the Senses . The album was seen by Grant as more of an extension to Comfort in Sound , as it focused on the same lyrical themes and musical styles , and also said that it had more of an organic sound , with more upbeat tracks added into the mix . It also seen a number of piano driven tracks , with " Frequency " being an example . " Frequency " was produced by Coldplay producer Ken Nelson , while for the rest of the album , Gil Norton was on production duties . Grant told Kerrang ! in May 2004 , " I 've done some recording on my own in a little studio up by where I live in North London . I demo the album in its full form before the rest of the band play on it . Its difficult to know at this stage what it will turn out like , but so far its slightly more mature sounding " . Grant later added " Each album is a journey and a reflection of the past , there is some stuff that touches on what has happened , but there are songs about love , songs of loss and songs about the future . I don 't want to give too much away but there 's one track called " Bitter Glass " . Its quite dark but uplifting too . Its about pulling yourself out of a big hole " . 
