Reaffirming music's roots outside the concert hall, the last two events in Oxford Contemporary Music's present programme, entitled Born in a Barn, take place in rural venues and involve in different ways an interaction between the music and the immediate environment.

Tomorrow, the Finnish composer and accordionist Kimmo Pohjonen will be at Park Farm, in North Aston, performing Earth Machine Music, work that has been specially written after an earlier visit in the spring when Pohjonen made recordings of the farm machinery and surroundings. An international musician, Pohjonen is known for his use of complex electronics and a high-energy style, often with classical players such as the Kronos Quartet, producing music that is visual, visceral, complex yet accessible.

The evening begins with a farm tour at 5.30pm, followed by music at 7.30pm. Go to wwwocmevents.org for the few remaining tickets.

Pandaemonium Picnic, "midsummer music, magic and mayhem", is the enigmatic title of the second Born in a Barn event that takes place in the Nuneham Courtney Arboretum. Tim Hill, known to many as a fine saxophonist and leader of the feisty band Tongues of Fire, has been commissioned to produce music and performance as part of a creative group known as Leviathan Whispers which includes Dave Young, Dan Fox and Martin West. Together, they will create an evening of sight and sounds within the Arboretum, exploring the sound potential of the landscape. Bring an early evening picnic and then "as dusk descends gather for a processional journey to welcome midsummer . . . Expect giant horns, musical machines, twittering things and a cornucopia of other sonic experiences". The evening will also include a performance by Horns of Plenty, an amateur marching band who have appeared at several events recently. Organised by Tim Hill and Pete McPhail, this band gives local Oxford musicians a chance to get involved in a marching band.

There are two performances of Pandaemonium Picnic on June 14 and 15. Both single and family tickets are available on www.ocmevent.org. This is an opportunity to have a midsummer picnic in the shade of giant sequoia and avenues of wild flowers surrounded by the musical mayhem of Leviathan Whispers.