  The understanding of the relationship between excitation parameters
andoscillation regimes is a classical topic concerning bowed stringinstruments.
The paper aims to study the case of reed woodwinds and attemptsto find
consequences on the ease of playing.In the minimum model of clarinet-like
instruments, three parameters areconsidered: i) the mouth pressure, ii) the
reed opening at rest, iii) thelength of the resonator \ assumed to be
cylindrical. Recently asupplementary parameter was added: the loss parameter of
the resonator(using the \textquotedblleft Raman model\textquotedblright, that
considersresonator losses to be independent of frequency). This allowed
explainingthe extinction of sound when the mouth pressure becomes very large.
Thepresent paper presents an extension of the paper by Dalmont et al
(JASA,2005), searching for a diagram of oscillation regimes with respect to
thereed opening and the loss parameter. An alternative method is used,
whichallows easier generalization and simplifies the calculation. The emphasis
is done on the emergencebifurcation: for very strong losses, it can be inverse,
similarly to theextinction one for weak losses. The main part of the
calculations areanalytical, giving clear dependence of the parameters. An
attempt to deducemusical consequences for the player is given.
