The program was originally hosted by Katie Malloch weekdays from Montreal and Tim Tamashiro on weekends from Calgary; after Malloch's retirement from the CBC in early 2012, Tamashiro was the sole host until his final show on June 30, 2017.

For the summer of 2017, the show was hosted by 5 different Canadian female jazz artists.

The change occurred on June 29, 2009 when it switched places with Canada Live, which had previously followed Tonic in the 8 p.m. to 10 p.m. slot.

It ended September 2, 2017, and was replaced by After Dark with Odario Williams.

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