C#
Augmented ionian
 Scale
other names: Major augmented, Major #5, Ionian augmented, Ionian #5
notes:C#D#E#F#G##A#B#
intervals:1P2M3M4P5A6M7M
semitones:2213121
EBGDG##EE#B#AbD#A#E#F#C#G##EBF#3GDA#E#B#GG#D#BF#C#G#5G##EB#GDG##A#E#C#AbD#A#7BF#DG##EBB#GD#A#E#B#9C#G#EBF#C#DG##E#B#GDD#A#F#C#G#D#1212EBGDG##EE#B#AbD#A#E#F#C#G##EBF#15GDA#E#B#GG#D#BF#C#G#17G##EB#GDG##A#E#C#AbD#A#19BF#DG##EBB#GD#A#E#B#21C#G#EBF#C#DG##E#B#GDD#A#F#C#G#D#2424EBGDG##E

Harmonized chords

IIIIIIIVVVIVII
in 3-notesC#Mb6D#mE#majF#majG##dimA#mB#dim
in 4-notesC#M7b6D#m7E#7F#maj7G##dim7A#m/ma7B#m7b5

other scale chords

C#augC#M7b6C#Mb6C#maj9#5C#M#5add9C#M7#5sus4C#M9#5sus4

Scale modes

C# Augmented ionianD# Romanian minorE# Phrygian majorF# lydian #9G## Altered bb7A# Harmonic minorB# Locrian 6

Related

with more notes

C# Bebop major