C#
Leading whole tone
 Scale
notes:C#D#E#F##G##A##B#
intervals:1P2M3M4A5A6A7M
semitones:2222211
G##EB#F##BbE#C#AbA##F#DG##3B#F##D#BbC#G#EA##5DG##E#B#D#BbGbC#7EA##F##DE#B#AbD#F#C#G##E10F##DBbE#G#D#A##F#1212G##EB#F##BbE#C#AbA##F#DG##15B#F##D#BbC#G#EA##17DG##E#B#D#BbGbC#

Harmonized chords

IIIIIIIVVVIVII
in 3-notesC#Mb6D#Mb6E#majF##Mb5G##dim-B#m
in 4-notesC#M7b6D#7b13E#7F##7b5G##m7b5-B#m/ma7

other scale chords

C#augC#maj7b5C#+7C#7b5C#M7b6C#Mb6C#maj9#5C#7#5C#9#5C#9#5#11C#M#5add9C#Mb5C#M9b5C#9b5C#7no5C#7b13C#9no5C#9b13

Scale modes

C# Leading whole toneE# Lydian minorF## Locrian majorB# Neopolitan major

Related

with less notes

C# Whole toneC# Lydian #5P pentatonicC# Whole tone pentatonic