The document contains musical notation for an open chord study for bass trombone in Bb major with 7th and 13th extensions. It includes 53 measures of chord progressions notated with standard musical notation symbols. Each measure presents a different open chord voicing using different combinations of the notes Bb, F, Gb, and D.

1. Estudo de Acordes Abertos
Maior com 7 e 13
Duda Bass Trombone
www.dudabasstrombone.blogspot.com Eduardo Guimarães
dudabtrb@gmail.com
                     
     
Trombone Baixo
 
Bb, F, Gb, D

                   
5
   
 

                    
9
    
 
                   
13
   
 

                   
17
    
 
                   
21
    
 
  
                 
25
   
 
  
                 
29
    
 
                    
33
   
 
Duda Bass Trombone©DBT

2. 2 Estudo de Acordes Abertos
                     
37

   
 
 
41
                 
   
 
    
45
                  
   
 
  
49
                  
   
 
  
53
                 
   
 
Duda Bass Trombone©DBT