Say, sometimes I think and sometimes I don't think, it depends upon how I feel throughout the day. Some days I truly focus upon the sections of a piece, if it is lengthy. Learning a piece is a process whenever I practice---I think or focus as I come to an understanding of a piece. But, when I play for enjoyment, then I don't think as much, the music flows through me as my fingers automatically go where they need to. Playing a piece varies each day and that is what makes music come alive within me, whether I feel good or bad, I may interpret the piece or sections differently than the day before. Learning a piece requires thinking and feelings, focusing and interpretation, concentration and desire.
best wishes,
go12_3