I think most of it is just cultural conditioning, we play major key songs when we're happy and minor key songs when we're sad (though this is changing in modern music). Another part of it could be that minor chords have their midtones clash a bit more with there tonic notes than major chords, it sounds slightly "wrong" to our ears and takes away from the happy effect.
        
             
        
        
        
Answer:Como es de esperar, en la Edad Media, auténtica era de la fe, la Iglesia dio trabajo intenso a ... los gremios, encargados de dirigir y regular las actividades de los artesanos. ... Uno de ellos fue Al-Andalus, heredera de la tradición oriental.
Explanation:
 
        
             
        
        
        
Answer:
From a student’s perspective, what do you think are the writing skills and competencies needed to be taught in Grade 7? 
 
        
             
        
        
        
Answer:
1) DO MI SOL 2) SI RE FA 3) FA LA DO 4) SI RE FA 5) LA DO MI 6) RE FA LA
Explanation:
Solo tienes que saltar una nota cada vez...