rethink select

[felixroos]

quoting pulu

seems like select doesnt preserve multichannel signals https://felixroos.github.io/kabelsalat/?p=bGV0IGltcHNlcSA9IG1vZHVsZSgiaW1wc2VxIiwgKHRyaWcsIC4uLnN0ZXApID0%2BIHRyaWcuc2VxKC4uLnN0ZXApLm11bCh0cmlnLnBlcmMoMCkpKTsKCmltcHVsc2UoOCkKICAuaW1wc2VxKDEsMCwxLDEsMCwxLDApCiAgLmFwcGx5KGcgPT4gZy5zZXEoMCwxLDQsNSw0LDEpCiAgICAuYWRkKDYwKS5taWRpbm90ZSgpCiAgICAucHVsc2Uoc2luZSgwLjkpLnJhbmdlKDAuMiwwLjQpKQogICAgLm11bChnLmFkKDAuMDAxLDAuMDcpKQogICAgLnBhbigtMSkKICAgIC5hcHBseShkcnkgPT4KICAgICAgZHJ5LmFkZCh4ID0%2BIHguZGVsYXkoMy84KS5tdWwoMC41KS5zdWIoMCkpCiAgICAgICAgLnNlbGVjdCgic3ViIikuYWRkKGRyeSkgLy8gc2hvdWxkIHNvdW5kIHRoZSBzYW1lIHdpdGggb3Igd2l0aG91dCB0aGlzIGxpbmU%2FCiAgICApCiAgKQogIC5vdXQoKTsK#select
or rather, i guess this creates a delay node for each channel and select just picks one of them
also i think i misunderstood the behavior before - so "first occurrence of the given type up in the graph" means "farthest from the output"
its a bit tricky in this case where i wanted to select the mul after the delay... i had to add a dummy .sub(0) (which only works as long as there is no sub node higher up)
i was thinking an alternative approach could be something like

dry.add(x => x.delay(3/8).mul(0.5).label("foo"))
  .select("foo")