What Is Love at number two in the United Kingdom and Germany and hit number one in 13 other countries: Austria, Belgium, Denmark, Finland, France, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Switzerland and Zimbabwe. Debuting at number 87 on 28 August 1993, the song reached number 11 on the Hot 100 in the United States. The song also peaked at number 12 in Australia. By March 1994, worldwide sales of "What Is Love" had already reached 2.6 million. When asked about the meaning of "What Is Love" in a 2015 interview, Haddaway said: "Billboard" wrote about the song: "Glorious pop/house ditty recently topped
Major thirds tuning improvisation. In contrast, chords cannot be shifted around the fretboard in standard tuning, which requires four chord-shapes for the major chords: There are separate fingerings for chords having root notes on one of the four strings three–six. The repetition of the major-thirds tuning enables notes and chords to be raised one octave by being "vertically" shifted by three strings. Notes and chords may be shifted "diagonally" in major-thirds tuning, by combining a vertical shift of one string with a horizontal shift of four frets: "Like all regular tunings, chords in the major third tuning can be moved across the fretboard