Otto Gumaelius is a London based, Botswana raised, percussionist specialising in the Kwanongoma marimba of southern Africa. He writes and performs, and teaches music from Zimbabwe, South Africa and Botswana through his company, African Marimba Music Ltd. He is also a published author with a 1st Class Master of Arts Honours Degree in International Management. He speaks four languages, and has lived, studied and worked in five countries around the world.



Born and bred in Botswana, Otto started playing the marimba at the age of 11. He continued to play marimba music throughout his secondary school years, studying under marimba pioneer and composer, Alport Mhlanga. He played in the school band until he left Botswana in 2003, having performed widely in Botswana and South Africa.

After relocating to Sweden, Otto joined Zimba Marimba Band, a high energy marimba band specialising in the music, dance and traditions of the Shona people of Zimbabwe. With Zimba, through the great initiative of Peta Axelsson, Otto got to delve deeply into the music of Zimbabwe; learning from and performing with an array of internationally acclaimed musicians; working on marimba, mbira, dance and drumming, with performances in and around Scandinavia, in Botswana, Mozambique, South Africa and Zimbabwe, and the United States of America. Highlights include performances for the King and Queen of Sweden in 2003, ZimFest in the USA in 2004, and being specially invited to perform at HIFA – Harare International Festival of the Arts – in 2007.

Otto moved to London in 2010 after graduating, and played with acts and artists including Chedu, Flame Lily Arts, Afriquoi and Tsungai Tsikirai. In 2016, Otto quit his job as a project manager to pursue a full time career in music. He formed African Marimba Music Ltd which specialises in marimba music workshops and performances, with a focus on the traditions of southern Africa. He also formed a band for corporate and private bookings called Duduetsa.

With almost 20 years of experience, and a need for his own voice, Otto decided to put to

gether a band to perform a collection of his own original material as well as arrangements of some of the folk songs he grew up listening to and playing. Otto is currently working on his debut album.

To date, Otto has featured on recordings by Thornhill Marimba Band, Maru-a-Pula Marimba Band, Zimba Marimba Band, Afriquoi and Flame Lily Arts. He provided music for the 2017 documentary, Apes of Brecon Beacon.



Otto began teaching during his teenage years in Sweden. He taught weekly marimba lessons to young people aged 8 – 18 at Staffanstorp’s Community Music School, and was regularly invited to teach both youth and adult groups in Helsingborg and Astorp. Otto led workshops in Iceland with Peta Axelsson in the winter of 2004; he has taught at Zimba Marimba International Marimba Camp on several occasions; and has worked with marimba students at ACS International School in Cobham.

Recently, through his company, African Marimba Music Ltd, Otto has run marimba workshops at various events and festivals in the UK, including Midnight Run and ZimFest Live. Otto runs weekly African marimba music classes in Bethnal Green, London. Click here to learn more.



In 2017, Otto launched Taste of Southern Africa Cultural Arts Festival, an annual festival promoting the cultural arts of southern Africa in the United Kingdom. The festival runs dance and music workshops, talks, jam sessions and live music events.