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| 3 | Special uses of invisbar |
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| 13 | Special uses of invisbar |
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| 15 | <P> |
| 16 | The "invisbar" can be used |
| 17 | to force Mup into |
| 18 | doing something in the middle of a bar that it normally would allow |
| 19 | to happen only at a bar line. |
| 20 | Suppose, for example, you wish to place a |
| 21 | <A HREF="bars.html#reh">rehearsal letter</A> |
| 22 | in the middle of a measure. This could be accomplished as follows: |
| 23 | <BR><PRE> |
| 24 | // assume we are in 4/4 time, but want |
| 25 | // a rehearsal letter by count 3 |
| 26 | // of the measure |
| 27 | |
| 28 | // do first part of measure and use "space" |
| 29 | // for last part so time values will add up |
| 30 | // properly to a full measure |
| 31 | 1: 4c;d;2s; |
| 32 | |
| 33 | // put in invisible bar with rehearsal letter |
| 34 | invisbar rehearsal let |
| 35 | |
| 36 | // now do the last half of the measure, |
| 37 | // this time with space at the beginning |
| 38 | 1: 2s;4e;c; |
| 39 | bar |
| 40 | </PRE><BR> |
| 41 | <IMG SRC="mugex87.gif" ALT="Picture of Mup output"><BR> |
| 42 | </P> |
| 43 | <P> |
| 44 | As another example of invisbar use, suppose you want to add a "courtesy" |
| 45 | key signature at the end of a repeated section to remind the player that the |
| 46 | beginning of the repeated section is in a different key. This can be done |
| 47 | by adding an empty measure whose sole purpose is to produce this key signature. |
| 48 | <BR><PRE> |
| 49 | score key=3& |
| 50 | music |
| 51 | 1: g;f;e;d; |
| 52 | repeatstart |
| 53 | 1: c;e;f;g; |
| 54 | dblbar |
| 55 | score key=0& |
| 56 | music |
| 57 | 1: g;f;e;d; |
| 58 | bar ending "1." |
| 59 | 1: f;e;2c; |
| 60 | // add a courtesy key signature, |
| 61 | // to remind player the beginning |
| 62 | // of the repeated section is in |
| 63 | // a different key |
| 64 | invisbar |
| 65 | score key=3& |
| 66 | music |
| 67 | 1: ms; |
| 68 | repeatend ending "2." |
| 69 | 1: e;d;2c; |
| 70 | endbar |
| 71 | </PRE><BR> |
| 72 | <IMG SRC="mugex88.gif" ALT="Picture of Mup output"><BR> |
| 73 | </P> |
| 74 | <P> |
| 75 | You can use a similar technique to insert time signatures, clefs, etc. |
| 76 | at unusual places. |
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