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In page Yes (band):

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When the band, minus Wakeman (who had only committed to recording keyboard overdubs once new material would be ready to record), reconvened in February to resume work on the project, their growing musical differences, combined with internal dissension, obstructed progress. Journalist Chris Welch, after attending a rehearsal, noted that Anderson "was singing without his usual conviction and seemed disinclined to talk".[13] By late March, Howe, Squire and White had begun demoing material as an instrumental trio, increasingly uncertain about Anderson's future involvement. Eventually, a serious band dispute over finance saw Anderson leave Yes, with a dispirited Wakeman departing at around the same time.[citation needed]