Minor key signature with no sharps or flats
a minor
The Greek word for "Major"
Ionian
Quality of unisons, 4ths, 5ths, and octaves
Perfect
Alto sax, clarinet, trumpet, guitar, horn are all this
Transposing instruments
A major third starting on C
E
Minor mode with a raised 7th scale degree
Harmonic minor
The Greek word for "Minor"
Aeolian
A-Eb
D5
Transposes up M6
Alto sax
Minor mode with a raised 6th and 7th
Melodic minor
CDEbFGABC
C melodic minor
3rd mode of A major
C# Phrygian
Inverts to m3rds
M6
Woodwind transposes up M2
Clarinet
Mode starting on the 4th note of the major scale
Lydian
4 sharps with an added B-sharp
C-sharp harmonic minor
DEFGABCD
D Dorian
Gx-F#
D7
For an Alto sax to play a concert "Bb", it would need to read
G
5 sharps
D#E#F#G#A#B#Cx
D# melodic minor
F#GABCDEF#
F# Locrian
Ebb-Bbb
P5
For Horn to play a concert "Gb" it would need to read
Db
For a trumpet to play a concert "B" it would need to read a
C#