Sheet music in treble clef et playing harmonica A

Dear Sear

I'm French and apologize for my English 

I study exercises Level 1 beginner written with treble clef in C major (I think right) and played in tone A with harmo A

my question is =if there is no tablature,I suppose that player must do himself transposition in A because notes are written in C major= 4B with C = note C and with harmo A 4B = noteA !!

it seems a hard task for beginners

thanks for your answer  I learn very much and easier with your teaching

In France all teachings are provided with harmo C

best regards 

Andre Francoul user name "louandre"

Mail

louandre2011@hotmail.fr