Support for abbreviations that generate syntax details

[Stan15]

Describe the feature in detail

Abbreviations that allow users to quickly generate tablature syntax.

e.g. the user types in the following snippet which generates the following measures with the specified number of measure lines and dashes after the user hits tab.
The abbreviation syntactically reads "generate 2 tabs with 3 measure lines which are 10 dashes long.

m(3/10)x2  ---> |----------|----------|     |----------|----------|
                |----------|----------|     |----------|----------|
                |----------|----------|     |----------|----------|

This is just an example of the syntax for abbreviations, and it is not a very good syntax, but it passes across the idea i'm trying to convey.

Purpose of this feature

This will allow for high-speed editing, so that users will not need to continually type in dashes