A total of 18 individual trophies are up for grabs along with the three supreme awards, New Orleans Trophy for the Most Outstanding Big Band; Norman Family Trophy for the best Jazz Combo; and Best of Festival Trophy.
Pukekohe High School will be back to defend their 2017 New Orleans and Best of Festival trophies alongside 2017 Norman Family Trophy winners Lynfield College.
But they will have to hit the right notes again with plenty of stiff competition, including from local contender Tauranga Boys' College, which is entering one big band and two combos.
Tauranga Boys' College director of arts John Page says the competition is the perfect "starting block" for the school year, helping accustom the students to new music and partnerships while building towards an annual end of year tour performing at schools and rest homes.
"It's a good catalyst to get the bands up and running. It allows us to delve into a form of music that the boys don't choose on their own and provides a holistic view on jazz styles and pieces," John says.
"It's really around giving the boys a much wider view of music."
While the students are battling it out on stage, one of the National Jazz Festival's headline acts will hold the final say in who reigns supreme come the end of the week.
Dr Rodger Fox – New Zealand's foremost jazz trombonist – sits as head judge and will be assisted by American bassist Dewayne Pate and saxophonist Dave Wilson.
"We are thankful for these three jazz superstars giving up their time to help foster the vibrancy and enthusiasm that is youth jazz," says Liam.
"The future of jazz is looking bright and we can't wait to see what talent is on show in 2018."
The 41st National Youth Jazz Competition runs from March 28 to 30. For details and tickets visit www.jazz.org.nz
Local bands competing
Tauranga Boys' College
Otumoetai College
Mount Maunganui College
Tauranga Girls' College
Katikati College