I've noticed that some people like playing my tunes because they have an intimate connection with them, where the music speaks to them in a way that makes the guitar secondary. It speaks to them directly in a non-guitar language, where technique is domesticated, transparent, and hidden away. When people try to play my music, they realize that it is about sound, sustain, voicings, and that technique must be subdued in order to let these elements be reflected in the music.
With "l'Alchimiste,” many students have struggled in exactly the same spots, and I keep telling them, "if you pay attention to the rhythmic values in the written music, you'll see that some fingers must keep their position while others are on the move, and if you release a position because of a difficult hand stretch, it will kill the sound and won't allow you to try anything more difficult." It's important to keep in mind that the bass line must sing continuously. When you stop pressing on a bass note, its voice is interrupted, it stops singing and creates a hole in the music. The same is valid for the actual central melody of the tune. A lot of people are absorbed and distracted by technical issues to the point of playing without carefully listening, so I'll remind you to listen attentively to what you are playing and all the answers will come accordingly.