Sesame, poppy and chia seeds sourdough

Retarded for 20 hours (unintentionally). Too much tang for my liking, tastes "malty"
Makes 1 small loaf (450g)
Soaker
30g mixture of sesame, poppy and chia seeds
40g water
Final dough
120g bread flour
40g whole wheat flour
25g rye flour
115g water
1 tsp salt
100g 100% hydration sourdough