An award-winning flautist known throughout the marching band fraternity will leave "music as his legacy", his family has said.
Marquez Glenny died peacefully on Saturday at his Knockmena Park home in Portadown surrounded by his family.
The 49-year-old is survived by his father Brian, wife Lisa and daughters Danielle and Cherie.
Mr Glenny, originally from Kilkeel in Co Down, was taught to play the flute at the age of seven by his father.
His passion for playing won him many awards throughout his life and he enjoyed being a member of his "home band", Derryogue Flute Band, following in the footsteps of his father and uncles.
Mr Glenny is also remembered for his membership of the Hunter Moore Memorial Flute Band in which he played for a number of years, and for his collection of flutes.
A family man, Mr Glenny was devoted to his wife and children and was pleased his daughter Danielle had inherited his musical genes, herself a flautist in Orangefield Flute Band in Kilkeel.
A security guard at Asda in Portadown, Mr Glenny was known as a "kind-hearted and caring" man who always had a smile on his face.
His second cousin David Brown paid tribute to the "gentle giant".
He said: "Marquez was a big man, big in stature, with a big smile and an even bigger heart. He was always smiling. He always had this big smile on his face anytime you met him.
"He was a very caring person, and even though he was ill with cancer he would still always be asking how other people were doing.
"He was a nice guy who was known by everybody everywhere he went, and he was a very talented musician - he could play any tune on a tin whistle or flute by ear."
Mr Glenny often played at weddings and functions as well as at charity events. He was also experienced in conducting and arranging music for Derryogue Flute Band and others.
But he mostly enjoyed taking part in parades and marching with his band in the Kilkeel and Mourne area.
He had also created a following of thousands on YouTube with his uploaded music videos.
In a final, fitting tribute, bandsmen will honour their former friend by attending his funeral dressed in their uniforms.
Mr Glenny's funeral will take place today at 10am from his home, arriving at Kilkeel Orange Hall at 11.30am, and proceeding to Mourne Presbyterian Church for service at noon.
He will be laid to rest at Tullylish Parish Churchyard.