Articulation and dynamics in brass music can be tricky for musicians. There are different ways to play notes, like staccato, legato, tenuto, marcato, and accents, and each one comes with its own challenges.

1. Staccato and Dynamics: Playing staccato means making short, quick notes. It can be hard to get these notes just right while keeping the volume balanced. Musicians need to be precise, which sometimes leads to changes in how loud or soft they sound.

2. Legato Phrasing: Playing legato means making notes flow smoothly together. This can be tough because musicians need to control their breath and mouth position carefully. At the same time, they have to make sure the volume doesn’t interrupt the smooth sound they are trying to create.

3. Tenuto and Marcato: When playing tenuto, musicians hold notes longer and with more power. This can be difficult if they are also trying to play more quietly. On the other hand, marcato notes are played with extra emphasis, which can be too loud and clash with softer notes. This can make the music sound messy.

4. Accentuation: Adding accents can be hard too. If a musician puts too much emphasis on certain notes, it can overshadow the softer parts of the music. This can take away some of the feelings that the music is supposed to express.

To tackle these challenges, musicians can:

• Work on controlling their breath and practice different volume levels.
• Start practicing slowly to focus on how they play each note without losing volume.
• Record themselves and listen back to find areas where they can improve.

In the end, blending articulation and dynamics perfectly takes a lot of practice and careful listening.