Page:Choirmaster's Manual.djvu/34

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22
THE CHOIRMASTER'S MANUAL

Octave and subtracting a semitone. In a short time the thinking of other tones will not be required.

It should be clearly understood that the even intervals occupy a space and a line; the uneven intervals either two spaces or two lines. It is readily grasped at sight that

\relative f' { \override Score.TimeSignature #'stencil = ##f \time 3/1 f1 c' }

cannot be a 4th or a 6th.

To reach a 7th, strike the octave, and come back one, then sing the 7th direct. The addition or subtraction of a semitone, by the use of a sharp or flat, can be practised, and the names of keys and numbers of sharps and flats can all be added. (See "The Choir-Boy's Manual," companion-book to this.)

When the choir can sing the seven intervals of the octave, starting from a given keynote, they will, if attentive, count up from any other keynote and sing equally well.

On the blackboard mark a keynote, then all the uneven intervals, 3d, 5th and 7th, then the even ones, 2d, 4th, 6th, 8th.

\relative c' { \override Score.TimeSignature #'stencil = ##f \time 4/1 c1_"1" e_"3d" g_"5th" b_"7th" | <c, d>_"2d" f_"4th" a_"6th" c_"8ve." \bar ".." }


\relative e' { \override Score.TimeSignature #'stencil = ##f \time 4/1 \key e \major e1_"1" gis_"3d" b_"5th" dis_"7th" | <e, fis>_"2d" a_"4th" cis_"6th" \override NoteHead.style = #'harmonic e_"8ve." \bar ".." }


\relative f' { \override Score.TimeSignature #'stencil = ##f \time 4/1 \key f \major f1_"1" a_"3d" c_"5th" e_"7th" | <f, g>_"2d" bes_"4th" \override NoteHead.style = #'harmonic d_"6th" f_"8ve." \bar ".." }


Pupils should now be able to name the interval from the keynote, by placing a series of notes on the board and pointing to them, thus: