noun

the quality of being great; eminence or distinction.

Elgar’s greatness as a composer

eminence,distinction,pre-eminence,illustriousness,lustre,repute,reputation,status,standing,high standing,importance,significance,value,merit,worth,celebrity,noteworthiness,fame,prominence,renown,brilliance,genius,prowess,talent,expertise,expertness,mastery,artistry,virtuosity,flair,skill,skilfulness,finesse,panache,power,adeptness,proficiency,calibre,grandeur,grandness,magnificence,impressiveness,splendour,gloriousness,glory,majesty,loftiness