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        Definition 
        
        | The distance between two pitches, generally counted in half and whole steps. |  
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        Definition 
        
        | (also known as semitone) - the distance between two adjacent pitches on the keyboard. Often spelled as a minor second. |  
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        Definition 
        
        | (also known as a tone) - Two half steps (semitones). Often spelled as a major second. |  
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        Term 
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        Definition 
        
        | Two pitches (an interval) a half step apart, spelled using successive letter names. |  
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        Term 
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        Definition 
        
        | Two pitches (an interval) a whole step apart, spelled using successive letter names. |  
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        Term 
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        Definition 
        
        | Two pitches (an interval) three half steps apart, spelled using letter names with a letter in between them. |  
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        Definition 
        
        | Two pitches (an interval) four half steps apart, spelled using letter names with a letter in between them. |  
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        Definition 
        
        | When this symbol ♯ is placed in front of a note, we raise it by a half step. |  
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        Term 
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        Definition 
        
        | When this symbol ♭ is placed in front of a note, we lower it by a half step. |  
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        Term 
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        Definition 
        
        | When this symbol ♮is used, we are to play the natural (white note) version of a particular pitch. It is frequently used to cancel sharps and flats that already appear elsewhere in the measure. |  
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        Term 
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        Definition 
        
        | Term we use as a catchall to describe the symbols placed in front of notes to change their spelling: sharps, flats, and natural signs (later, we will discuss two more accidentals: double-sharps and double-flats). |  
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        Term 
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        Definition 
        
        | Two notes that are spelled differently but sound the same are considered to be enharmonic equivalents. |  
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        Term 
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        Definition 
        
        | Two pitches that are the same. |  
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