diff --git a/cuburn/genome/blend.py b/cuburn/genome/blend.py
index f9f4241..1b5079d 100644
--- a/cuburn/genome/blend.py
+++ b/cuburn/genome/blend.py
@@ -11,7 +11,7 @@ from scipy.ndimage.filters import gaussian_filter1d
 import spectypes
 import specs
 from use import Wrapper
-from util import get, json_encode, resolve_spec
+from util import get, json_encode, resolve_spec, flatten, unflatten
 import variations
 
 def node_to_anim(node, half):
@@ -26,11 +26,11 @@ def node_to_anim(node, half):
 
 def edge_to_anim(gdb, edge):
     edge = resolve(gdb, edge)
-    src, osrc = _split_ref_id(edge.link.src)
-    dst, odst = _split_ref_id(edge.link.dst)
-    src = apply_temporal_offset(resolve(gdb, src), osrc)
-    dst = apply_temporal_offset(resolve(gdb, dst), odst)
-    return blend(src, dst, edit)
+    src, osrc = _split_ref_id(edge['link']['src'])
+    dst, odst = _split_ref_id(edge['link']['dst'])
+    src = apply_temporal_offset(resolve(gdb, gdb.get(src)), osrc)
+    dst = apply_temporal_offset(resolve(gdb, gdb.get(dst)), odst)
+    return blend(src, dst, edge)
 
 def resolve(gdb, item):
     """
@@ -46,16 +46,16 @@ def resolve(gdb, item):
     items = map(flatten, go(item))
     out = {}
 
-    for k in set(ik for i in items for ik in i):
-        sp = _resolve_spec(spec, k)
+    for k in set(ik for i in items for ik in i.keys()):
+        sp = resolve_spec(spec, k.split('.'))
         vs = [i.get(k) for i in items if k in i]
         # TODO: dict and list negation; early-stage removal of negated knots?
-        if is_edge and isinstance(sp, (Spline, List)):
+        if is_edge and isinstance(sp, (spectypes.Spline, spectypes.List)):
             r = sum(vs, [])
         else:
             r = vs[-1]
         out[k] = r
-    return unflatten(out)
+    return unflatten(out.items())
 
 def _split_ref_id(s):
     sp = s.split('@')
diff --git a/cuburn/genome/convert.py b/cuburn/genome/convert.py
index b66ddd8..9e4d200 100644
--- a/cuburn/genome/convert.py
+++ b/cuburn/genome/convert.py
@@ -105,7 +105,7 @@ def make_symm_xforms(kind, offset):
 def convert_xforms(flame):
     xfs = dict(enumerate(map(convert_xform, flame['xforms'])))
     if 'symmetry' in flame:
-        xfs.update(make_symm_xforms(float(flame['symmetry']), len(xfs)))
+        xfs.update(make_symm_xforms(flame['symmetry'], len(xfs)))
     return xfs
 
 pair = lambda v: dict(zip('xy', map(float, v.split())))
diff --git a/cuburn/genome/util.py b/cuburn/genome/util.py
index 51c193c..e4afc29 100644
--- a/cuburn/genome/util.py
+++ b/cuburn/genome/util.py
@@ -14,7 +14,7 @@ def get(dct, default, *keys):
             return default
     return dct
 
-def flatten(dct, ctx=()):
+def flatten(src):
     """
     Given a nested dict, return a flattened dict with dot-separated string
     keys. Keys that have dots in them already are treated the same.
@@ -22,14 +22,15 @@ def flatten(dct, ctx=()):
     >>> flatten({'ab': {'xy.zw': 1}, 4: 5}) == {'ab.xy.zw': 1, '4': 5}
     True
     """
-
-    for k, v in dct.items():
-        k = str(k)
-        if isinstance(v, dict):
-            for sk, sv in flatten(v, ctx + (k,)):
-                yield sk, sv
-        else:
-            yield '.'.join(ctx + (k,)), v
+    def go(dct, ctx=()):
+        for k, v in dct.items():
+            k = str(k)
+            if isinstance(v, dict):
+                for sk, sv in go(v, ctx + (k,)):
+                    yield sk, sv
+            else:
+                yield '.'.join(ctx + (k,)), v
+    return dict(go(src))
 
 def unflatten(kvlist):
     """
diff --git a/main.py b/main.py
index cb46796..1547556 100644
--- a/main.py
+++ b/main.py
@@ -40,7 +40,7 @@ def save(out):
 def main(args, prof):
     import pycuda.autoinit
 
-    gdb = db.open(args.genomedb)
+    gdb = db.connect(args.genomedb)
     if os.path.isfile(args.flame) and (args.flame.endswith('.flam3') or
                                        args.flame.endswith('.flame')):
         with open(args.flame) as fp:
@@ -50,7 +50,7 @@ def main(args, prof):
             warnings.warn('%d flames in file, only using one.' % len(flames))
         gnm = convert.flam3_to_node(flames[0])
     else:
-        gnm = gdb.open(args.flame)
+        gnm = gdb.get(args.flame)
 
     if gnm['type'] == 'node':
         gnm = convert.node_to_anim(gnm, half=args.half)
@@ -69,7 +69,7 @@ def main(args, prof):
               for i, t in enumerate(times)]
     if args.end:
         frames = frames[:args.end]
-    frames = frames[args.start::prof['skip']+1]
+    frames = frames[args.start::gprof.skip+1]
     if args.resume:
         m = 0
         if args.flame.name != '-':
@@ -77,7 +77,7 @@ def main(args, prof):
         frames = (f for f in frames
                   if not os.path.isfile(f[0]) or m > os.path.getmtime(f[0]))
 
-    w, h = prof['width'], prof['height']
+    w, h = gprof.width, gprof.height
     gen = rmgr.render(gnm, gprof, frames)
 
     if not args.gfx: