On a keyboard, there is no semi-tone between these two notes.
They are not the same note, though. The difference is theoretical, but that's the topic here, isn't it? It comes down to what is known as spelling.
For example, if we were talking about english words, you might ask why is c the same as k? Kake (cake), kat (cat), cing (king), and cnocc (knock) are all misspelled words despite a sonic similarity.
The question is where is that note likely to go. D-flat is more likely to lead to C or E-flat, whereas C-sharp is more likely to head for D or B. Like much of life, it's all a matter of context.
Actually, before 12-tone standard A440 equal tempered tuning, C♯ and D♭ we're two different notes! These two notes we're in the places of our modern-day black keys but we're split so the note at the the top would play C♯ and the bottom note would play D♭, these we're called "split sharps" but nowadays C♯ and D♭ are played on the same key due to the so called "wolf" intervals (e.g in that tuning system from G♯ to E♭). The sharps and flats in those days we're two awful sounding pitches and back the C♯ was a bit flatter than the modern C♯/D♭ and the D♭ was a bit sharper that the modern D♭/C♯. In those scales the notes would have went C, C♯, Db, D, D♯, E♭, E, F, F♯, G♭, G, G♯, A♭, A, A♯, B♭, B and C - totalling 17 notes.
The note A is one tone lower than the note B. Western music is divided into semitones (or half tones) so there is only space for one note between A and B.
So, A sharp (one semitone HIGHER than A) and B flat (one semitone LOWER than B) must be the same note.
D# is not the same note as Db. D# is Eb
b flat
On a b-flat trumpet, A sharp is played with the first valve, same same as B flat.
No. An A flat is the same as a G sharp and an A sharp is the same as a B flat. A flat and A sharps are two different notes, although they are the same distance from A.
Same as B-flat.
It depends honestly because there no such thing as an E sharp or F flat and also a flat is a sharp at the same time an A sharp is the same thing as B flat but between an A sharp And C sharp(or D flat) (also B and C is just like E and F) there is one and one half steps between those two notes. It honestly depends on what sharp and Flat youre talking about
No, F is the same as E sharp. B flat is the same as A sharp.
b flat
On a b-flat trumpet, A sharp is played with the first valve, same same as B flat.
No. An A flat is the same as a G sharp and an A sharp is the same as a B flat. A flat and A sharps are two different notes, although they are the same distance from A.
D-flat
Same as B-flat.
Same as B-flat.
Yes. A sharp and B flat are the same pitch. However, they are notated differently, and used differently, in accordance with the effect required by the composer.
No. There are a (plus a flat and a sharp), b (plus b flat and b sharp), c (flat and sharp), d (flat and sharp), e (flat and sharp), f (flat and sharp), and g (flat and sharp). That makes a, b, c, d, e, f, g Plus the flat and sharp for each, making 21 notes of the scale.
Same as B-flat.
a flat( or g sharp),a, b flat( or a sharp), b, c flat (or b sharp), c, c sharp (or d flat), d, e flat (or d sharp), e, f flat( or e sharp), f, f sharp ( or g flat)and g.
a flat( or g sharp),a, b flat( or a sharp), b, c flat (or b sharp), c, c sharp (or d flat), d, e flat (or d sharp), e, f flat( or e sharp), f, f sharp ( or g flat)and g.