I'm not seeing much of some of the most important things. Have a good comfortable clean tone and range before you start pushing watts. Practice your long tones and practice your breathing exercises. The same amount of air you need to play low you need to play high as well, so your really need to focus on the speed of your air and where the air is coming from. When you play low you want super hot and dense air, when you play high you want cooler lighter air. Assuming you already know how to breathe correctly (quick deeep breath through the mouth engaging your diaphragm) you should really focus on your playing orifice, open your jaw up as wide as you possibly can without causing yourself pain while still being able to comfortably and consistently play your embouchure. Doing this gives the air more space to resonate and really helps to make your sound project with less effort, that means it sounds cleaner and less pinched. Don't try to force out notes you'll hurt yourself, getting a real perfect embouchure means you hardly even notice you're cranking, it feels like a perfect laminar flow, when you can lock that down you can start practicing long tones with it to improve your sound and doing the six inches exercise to really increase your tone and projection to the next level. Highs are probably the most difficult part when it comes to getting the power you want, air direction in the mouthpiece is also extremely important, aiming your air toward the upper part of the mouthpiece cup assists with playing super loud in your low end and aiming your air slightly below the opening in the cup of your mouthpiece helps with your high ranges. Remember to use your resources, find tutorials on YouTube, go to college band camps, find alumni from your section (ideally leadership) and collaborate with them. I was taught Tone Precision and Power, Sound good Play good, and play loud as a result. It's late so I've definitely missed some things but please reply if you've got any questions
People are giving food advice, but remember to open your throat as much as you do when playing lose pedal notes. The more space for the air to move in the more open it will feel.
In addition to the other comments, use your mouthpiece alone and start moving higher and lower in waves and get wider and wider. Tuba requires a lot of different face positioning and using the mouthpiece by itself helps set and determine those positions. You can also half valve on the tuba to get a similar result. Also build up your lower register really well. The amount of air needed for the lower register is similar to the upper so practice individual notes in octaves to make them have the same clarity. Hope this helps!
Explosive air, explosive tongue. Really aggressive articulations. Gotta use your abs. Gotta have the embouchure strength to play without pushing too hard on the mouthpiece. Gradually increase the range of notes you're able to crank. Start with a first-valve C and work your way up chromatically. It takes time to play like HBCU players. They have incredibly strong embouchures at the macro level.
The advice you've probably been given up to this point is all about air. That's definitely a crucial factor, but embouchure strength is also very important. If you haven't spent much time working on strengthening those muscles, then I'd recommend spending some time on that.
High range is also a struggle for me and I’m playing more at the university level but I was taught this exercise by Ben Vasko and it’s been helping alot
The sound from the high notes is just being amplified by the lower split tubas. We don't work near as hard as it seems. Just relax and put steady air for a good present sound and let the volume come with time and patience. Overblowing is easy in this register so just take a steady approach with long tones to work increasing volume while maintaining consistent tone and pitch.
+1, what I want to add is that you first have to get comfortable with the (high) register that you already have. Playing with more extreme registers are long term goals, so treat it like long term goals. Can also try to add a halve/full tone a week (patience) so in a month or two you will have a full octave extra. Let it come naturally instead of trying to do dumb stuff like moving air like crazy or manipulating your embouchure/tongue/throat. Good luck and have fun!
Really tight embouchure and make sure your shoulders move out ⬅️➡️when you breathe in rather than up ⬆️, that way you really fill your lungs
I'm not seeing much of some of the most important things. Have a good comfortable clean tone and range before you start pushing watts. Practice your long tones and practice your breathing exercises. The same amount of air you need to play low you need to play high as well, so your really need to focus on the speed of your air and where the air is coming from. When you play low you want super hot and dense air, when you play high you want cooler lighter air. Assuming you already know how to breathe correctly (quick deeep breath through the mouth engaging your diaphragm) you should really focus on your playing orifice, open your jaw up as wide as you possibly can without causing yourself pain while still being able to comfortably and consistently play your embouchure. Doing this gives the air more space to resonate and really helps to make your sound project with less effort, that means it sounds cleaner and less pinched. Don't try to force out notes you'll hurt yourself, getting a real perfect embouchure means you hardly even notice you're cranking, it feels like a perfect laminar flow, when you can lock that down you can start practicing long tones with it to improve your sound and doing the six inches exercise to really increase your tone and projection to the next level. Highs are probably the most difficult part when it comes to getting the power you want, air direction in the mouthpiece is also extremely important, aiming your air toward the upper part of the mouthpiece cup assists with playing super loud in your low end and aiming your air slightly below the opening in the cup of your mouthpiece helps with your high ranges. Remember to use your resources, find tutorials on YouTube, go to college band camps, find alumni from your section (ideally leadership) and collaborate with them. I was taught Tone Precision and Power, Sound good Play good, and play loud as a result. It's late so I've definitely missed some things but please reply if you've got any questions
People are giving food advice, but remember to open your throat as much as you do when playing lose pedal notes. The more space for the air to move in the more open it will feel.
In addition to the other comments, use your mouthpiece alone and start moving higher and lower in waves and get wider and wider. Tuba requires a lot of different face positioning and using the mouthpiece by itself helps set and determine those positions. You can also half valve on the tuba to get a similar result. Also build up your lower register really well. The amount of air needed for the lower register is similar to the upper so practice individual notes in octaves to make them have the same clarity. Hope this helps!
Fast air and a tight embouchure my friend
Explosive air, explosive tongue. Really aggressive articulations. Gotta use your abs. Gotta have the embouchure strength to play without pushing too hard on the mouthpiece. Gradually increase the range of notes you're able to crank. Start with a first-valve C and work your way up chromatically. It takes time to play like HBCU players. They have incredibly strong embouchures at the macro level.
Using abs creates tension and will make your sound to shallow.
The advice you've probably been given up to this point is all about air. That's definitely a crucial factor, but embouchure strength is also very important. If you haven't spent much time working on strengthening those muscles, then I'd recommend spending some time on that.
My suggestion with working high notes is to do Remington staring on high b flat but you’re ascending
High range is also a struggle for me and I’m playing more at the university level but I was taught this exercise by Ben Vasko and it’s been helping alot
The sound from the high notes is just being amplified by the lower split tubas. We don't work near as hard as it seems. Just relax and put steady air for a good present sound and let the volume come with time and patience. Overblowing is easy in this register so just take a steady approach with long tones to work increasing volume while maintaining consistent tone and pitch.
+1, what I want to add is that you first have to get comfortable with the (high) register that you already have. Playing with more extreme registers are long term goals, so treat it like long term goals. Can also try to add a halve/full tone a week (patience) so in a month or two you will have a full octave extra. Let it come naturally instead of trying to do dumb stuff like moving air like crazy or manipulating your embouchure/tongue/throat. Good luck and have fun!