Rau ntau tshaj 20 xyoo, Musicians On Call (MOC) tau coj cov suab paj nruag nyob thiab kaw rau cov txaj ntawm cov neeg mob hauv cov chaw saib xyuas kev noj qab haus huv. MOC Cov Neeg Ua Haujlwm Pab Dawb tau ua yeeb yam rau ntau dua 800,000 tus neeg mob, tsev neeg, thiab cov neeg saib xyuas ntawm cov chaw thoob plaws lub tebchaws. Musicians On Call yog lub teb chaws lub koom haum ua ntej xa lub zog kho suab paj nruag, pabcuam cov tib neeg hauv cov chaw los ntawm cov tsev kho mob menyuam yaus mus rau cov chaw laus, VA tsev kho mob, thiab tsev kho mob.