If you want to add a trill with an accidental and have it play back as notated a bit of trickery is needed which is described here https://musescore.org/en/node/277181
Do you perhaps mean a two note tremolo - a rapid alternation between two notes (for example C to F) rather then trill which if applied to a C could only be between C and D with the D possibly flatted or sharped?
What would you like different about it? The symbol provided is pretty standard, but you can always try different music fonts in Format / Style / Score. If you mean the playback, there are options in the Inspector. if you mean accidentals, you can add those from the palette. If you mean something else, please explain further.
Comments
It is not clear what you mean by "specifc". But a trill over a single note can be added from the ornaments pallet See https://musescore.org/en/handbook/3/articulations-and-ornaments
An extended till covering one or more notes can be added from the lines pallet See https://musescore.org/en/handbook/3/lines
If you want to add a trill with an accidental and have it play back as notated a bit of trickery is needed which is described here https://musescore.org/en/node/277181
i mean how do you add your own trill instead of the default trills
In reply to i mean how do you add your… by ChessPlayer601…
No, I still don't understand what you want.
Do you perhaps mean a two note tremolo - a rapid alternation between two notes (for example C to F) rather then trill which if applied to a C could only be between C and D with the D possibly flatted or sharped?
If you want a tremolo see https://musescore.org/en/handbook/3/tremolo - you need to scroll down a few paragraphs to find two note tremolos.
In reply to i mean how do you add your… by ChessPlayer601…
What would you like different about it? The symbol provided is pretty standard, but you can always try different music fonts in Format / Style / Score. If you mean the playback, there are options in the Inspector. if you mean accidentals, you can add those from the palette. If you mean something else, please explain further.