uriName = @newEffectName.replace(/[^a-zA-Z0-9_]/g, '')

    return if not uriName.length

    effectUri = U(":effect") + "/#{uriName}"

    ctx = U("http://light9.bigasterisk.com/show/dance2017/effect/#{uriName}")

      llc.clear()

  update: ->

    @set('devices', [])

    for dc in _.sortBy(@graph.subjects(U('rdf:type'), U(':DeviceClass')))

  onSubj: (graph, @subj) ->

    graph.runHandler(@loadAttrs.bind(@), "loadAttrs #{@subj}")

  loadAttrs: ->

    @attrs = []

    for s in @graph.objects(U(@subj), U(':setting'))

      attr = @graph.uriValue(s, U(':deviceAttr'))

    setupDrop(@, @$.rows, root, @onDrop.bind(@))

  onDrop: (effect, pos) ->

    # we could probably accept some initial overrides right on the

    # effect uri, maybe as query params

    @makeNewNote(effect, dropTime)

  makeEffect: (uri) ->

    effect = U(uri + '/effect')

    quad = (s, p, o) => {subject: s, predicate: p, object: o, graph: effect}

    return effect

  makeNewNote: (effect, dropTime) ->

    quad = (s, p, o) => {subject: s, predicate: p, object: o, graph: @song}

    newNote = @graph.nextNumberedResource("#{@song}/n")

  onGraph: ->

    @graph.runHandler(@update.bind(@), "row notes #{@rowIndex}")

  update: (patch) ->

    notesForThisRow = []

    i = 0

  updateDisplay: ->

    # update our note DOM and SVG elements based on the graph

    yForV = (v) => @offsetTop + (1 - v) * @offsetHeight

        @updateStrengthCurveEtc(originTime, curve, yForV, effect)

  updateStrengthCurveEtc: (originTime, curve, yForV, effect) ->

    [@pointUris, @worldPts] = getCurvePoints(@graph, curve, originTime) # (song time, value)

    curveWidth = =>

    @makeCurveAdjusters(curveWidth, yForV, @worldPts)

  makeCurveAdjusters: (curveWidth, yForV, worldPts) ->

    if true

      @adjusterIds[@uri+'/offset'] = true

    'onColorScale(graph, uri, colorScale)'

    ]

  onColorScale: ->

    if @colorScale == @colorScaleFromGraph

      return

  update: ->

    console.time('attrs update')

    @effect = @graph.uriValue(@uri, U(':effectClass'))

    @effectLabel = @graph.stringValue(@effect, U('rdfs:label')) or (@effect.replace(/.*\//, ''))

    @noteLabel = @uri.replace(/.*\//, '')