Evelyn Glennie contemporary musicians, giving over 100 concerts a year as well as master classes and "music in schools" performances; she frequently commissions percussion works from composers and performs them in her concert repertoire. She also plays the Great Highland Bagpipes and has her own registered tartan known as "The Rhythms of Evelyn Glennie". Glennie is in the process of producing her own range of jewellery and works as a motivational speaker. Evelyn also performed at the Opening Ceremony of the Olympic Games in London 2012, leading a thousand drummers in the opening piece of music, and then playing the Aluphone during
Deaf climbers tug is how the command will be identified. This may take a lot of practice and vary within groups or individual deaf climbers so it is important to be clear of what amount of tugs as well as what the strength of each tug stands for what command. Sign Language may be used as a command method. This is the language of Deaf individuals who are in the deaf community. There are many people who are deaf who do not use sign language. This language is a visual language and does not require any vocal usage. Sign language uses facial