HiHo - I forgot about your slurs in my examples, but they have been covered above (and my error in last note of example one corrected by Mark Clark above). I did say in my post that they worked in abcm2ps (the best printing program IMHO) because that's what I tested it with.

I've just run the examples through abc2win 2.1i and as you say the elegant method 1 produces the wrong notation for the final B,. The other 2 produce the right effect, with the 2nd one producing the written double-dotted note. So if you want it to look like that as well as having the correct timing, you could just change the default note length for that section using either the L command on a separate line as in example 4 or the nicer inline command as in version 5. Both of these produce the correct output with ABC2Win 2.1i

Mick

X:1
T:Test
M:4/4
L:1/8
K:A
A> G A2 ({AG}G2>>) B,2||

X:2
T:Test
M:4/4
L:1/4
K:A
A3/4 G/4 A ({AG}G>>) B,||

X:3
T:Test
M:4/4
L:1/8
K:A
A> G A2 ({AG}G2-G>) B,||

X:4
T:Test
M:4/4
L:1/8
K:A
A2 B2 A4|
L:1/4
A3/4 G/4 A ({AG}G>>) B,|
L:1/8
E2 G2 A4||

X:5
T:Test
M:4/4
L:1/8
K:A
A2 B2 A4|[L:1/4]A3/4 G/4 A ({AG}G>>) B,|[L:1/8]E2 G2 A4||