A Song Educating The Masses About Dynamite T.N.T. Marked A Change In Direction From AC/DC's Debut Album High Voltage Released In February 1975. Whereas High Voltage Featured More Of A Glam Rock-Influenced Sound T.N.T. Saw The Band Fully Embrace The Formula For Which They Would Become Famous Hard-Edged Rhythm & Blues-Based Rock 'n' Roll. This Album Contains Some Of The Band's Best-Known Songs Including The Title Track "It's A Long Way To The Top If You Wanna Rock 'n' Roll " "The Jack" And Others.