So, how about combining the two ideas?
A2 E2 G2 A2 |[V:1] A B c d e f g a [V:1+] A A A A A A A A [V:1+] A G F E D C B, A,|]
Or use Richard's lower case idea [v:1+].
Hmmm...
Why not allow both for transient voices *both* on separte lines and as through inline fields? That seems to be more or less consistent with how other inline fields work in ABC.
The problem with the & notation already existing still remains, though...
I'm thinking aloud here, but, how about this:
-------------------------------------------------------- Transient voices
A transient voice is a temporary voice linked to a main voice for shorter or longer sequences. In theory it is possible to have a transient voice running through an entire piece, but that is not recommended.
A transient voice is named with a v: (lower case v!) field. It's name is the same as its parent voice with a + added.
The v: field can be used both inline and on a separate line.
To start a transient voice in the middle of a bar, the x spacer can be used.
To start a transient voice at a bar in the middle of a line, one can either use an inline v: field or "empty" bars similar to what's used on w: fields.
For backwards compatibility, the sign & is allowed as an equivalent to an inline v: field. This is, however not recommended since it may conflict with future extensions of the ABC standard.
Examples:
X:1 T:Ex. 1 N:The transient voice starts at the beginning of bar two. M:C L:1/4 K:C V:1 CDEF|GABc [v:1+]G2FE|]
X:2 T:Ex. 2 N:The transient voice starts on the second beat of bar two. M:C L:1/4 K:C V:1 CDEF|GABc [v:1+]xGFE|]
X:3 T:Ex. 3 N:The transient voice starts at the beginning of the line. M:C L:1/4 K:C V:1 CDEF|GABc|] v:1+ CB,C2|
X:4 T:Ex. 4 N:The transient voice starts at the beginning of bar two. M:C L:1/4 K:C V:1 CDEF|GABc|] v:1+ |G2FE|
X:5 T:Ex. 5 N:Same as Ex. 1, but with & as a substitution for [v:1+] M:C L:1/4 K:C V:1 CDEF|GABc & G2FE|]
--------------------------------------------------------
Frank Nordberg http://www.musicaviva.com
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