The document appears to be a musical warm-up exercise for trombone. It contains a series of musical notes represented by symbols. The notes are arranged in ascending and descending patterns in different positions on the trombone. The patterns become more complex and cover a wider range as the exercise progresses through multiple sections.

1. Serie Harmônica
Warm-up
Eduardo Guimarães
www.dudabasstrombone.blogspot.com
 

 ,         
     
Trombone    
,         
6

 
6
  
   
  

  ,       

6
  
 
  
  
 ,   
  
6

    

  
  
 ,         
   
    
  
  ,         
6

     
  
 ,       
  
6
    
 
  
 

6
,       
  
Trombone F
 
   
  
3rd Position
6
DBT©dudabasstrombone

2. Serie Harmônica
2
,       
 
 
6
    
   
  

 
        
6
   
  
  
,       
Trombone D
 

6
    
   
  
3rd Position
 
  ,        
6
    
   
  


 ,      
  
6
   
   
  

 

6
,       
    
 
  
DBT©dudabasstrombone