Now let’s try the same with a high A (the resultant should be a low F) a middle A flat (resultant: A flat below the bass clef) and a tenor E flat. For many who are not sure what to expect, this can be a true epiphany – a revelation that that will revolutionise your playing for evermore. Now open your eyes and see how far the needle is from the centre and in which direction it is deflected. (There is a detailed website on the theory behind resultants or interference beats and how they work at ). You might be able to hear the ‘resultant’ (the low note that is generated when two higher notes are played together also known as a Tartini tone) which should be a low C. Now let’s move on to thirds and sixths: eyes shut again play a tenor E and get the chord to sound resonant and warm. Play tenor G or F in the bass clef (so as to make a perfect fifth) and the reading will also be where you’d expect it (well, almost). Shut your eyes play any C listen till it sounds in tune open your eyes and, surprise, surprise, the needle on your tuner is in the middle. (the volume should be turned up quite a bit). Now let’s get the the tone generator playing, for example, the note middle C. You will need to use a contact microphone to connect your instrument to the tuner. This or something similar can be used in conjunction with a tuning machine. I believe this CD is no longer available but an extremely useful resource is this tone generator. How earnest they can be! Just imagine hordes of over-keen bassoon students religiously sitting in their living rooms playing long notes in unison with the CD. When I first came across this I sighed deeply and muttered something unprintable about Americans. ‘He that touches pitch shall be defiled therewith.’įrank Morelli ( ) used to sell a CD on his website which would play any particular fixed note that you could check your intonation with. This web page goes into great detail about this important subject but the principles involved should be grasped by all instrumentalists.
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