A deceptively simple five-note exercise which can identify the unstable points in the vocal range. These points can often define the apparent upper limit of a voice but which, when successfully bridged, may open up new vistas. If at any point the top note in the phrase feels too high then firstly carry the ‘y’ of the ‘ay’ vowel across to produce a clear ‘ya’ sound using a strongly arching tongue (as in the German ‘ja’) If this does not anchor the note, substitute a ‘new’ for a while and then try to replicate that positioning when you revert to the ‘a’ You will find that the tongue does give a subtle lift without going as far as the overt ‘ya’. This should allow you to give an impression of ‘length’ to that ‘top of the phrase’ note which is generally what is required in such a melodic shape. Male voices may find that the top of the HR or even the MR sets may feel strained in which case switch to singing ‘new’ and allow the head voice or possibly the falsetto voice to come through. Other exercises in the system will be used to bridge what can often appear an unfillable gap. Among my pupils I have five male voices who can sing this exercise from D to at least a’’ and are able to choose whether to stay in baritone/tenor timbre for that repertoire or mix in the head-voice to move smoothly into and stay in alto range.