This is the 7113th most frequent Russian word.
большинству
"Dative case of 'majority.'"
In this sentence, "большинству" is the dative singular form of "большинство," used to indicate that most part of people (the indirect object) prefers calm music.
Большинству людей нравится спокойная музыка.
Most people prefer calm music.
Here, "большинству" is used to refer to 'most of the students,' where it serves as the indirect object relating to the verb "покажется".
Это предложение покажется большинству учащихся сложным.
This sentence will seem complex to most students.
In this example, "большинству" denotes 'most of people,' indicating to whom the inherent attribute (indifference) relates.