In my humble opinion, the Abbey of Solesmes should have left the artwork exactly as they had it back in 1908. But you be the judge:
Graduale Romanum (Solesmes Abbey, 1883):
Graduale Romanum (Solesmes Abbey, 1908):
Graduale Romanum (Solesmes Abbey, 1961):
By the way, their 1949 edition of the Antiphonale Romanum is also a model: truly fantastic.