Mediastinal lymphadenopathy or mediastinal adenopathy is an enlargement of the mediastinal lymph nodes.
the musical term for loud is F or forte and for soft P or piano.
The other frequencies such as 2fo, 3fo, 4fo, ..... are called overtones or harmonics and they determine the quality of the sound. Loudness is a physiological sensation. It depends mainly on sound pressure but also on the spectrum of the harmonics and the physical duration.