Base, bull, bear: scenario models that earn their keep
Scenario modelling a catalogue only earns its keep when base, bull and bear cases are built on named, defensible assumptions, not narrative.
Every catalogue valuation carries an unspoken confidence trick: a single number, dressed up as certainty, standing in for a stream of income that will actually unfold across decades of uneven, unpredictable behaviour. Scenario modelling a catalogue properly means refusing that trick. It means building base, bull and bear cases that are each internally consistent, each defensible on their own assumptions, and each capable of being interrogated line by line. Done well, this is the difference between an investment thesis and a guess dressed in a spreadsheet.
The appeal of a single headline figure is obvious. It is clean, quotable, and easy to put in front of a credit committee. But music income is not a single line. It is streaming royalties subject to platform economics and consumption habits, synchronisation fees that arrive in lumps, performance income tied to broadcast and live patterns, and mechanical income that behaves differently again. Collapsing all of that into one blended growth rate flatters the model and hides the risk.
Scenario modelling a catalogue that survives scrutiny
A base case should reflect the most probable trajectory of each income stream, built from the catalogue's own history rather than borrowed industry averages. Decay curves matter here more than growth assumptions: how quickly does a given track's streaming income taper once its cultural moment passes, and does that pattern match comparable works of similar age and genre.
The bull case is not simply the base case with a higher number bolted on. It should be tied to identifiable mechanisms: a sync placement that lifts catalogue-wide discovery, a territory where streaming penetration is still rising, a legacy artist benefiting from anniversary or reissue attention. Each driver should be named, not assumed.
The bear case deserves the same rigour, not treatment as an afterthought. Platform repricing, changes to royalty allocation methodology, rights reversion risk, or simple listener fatigue all belong here. A bear case that is just the base case shaved by a flat percentage tells a lender nothing about where the real fragility sits.
Where the noise creeps in
The temptation in every negotiation is to lean on the bull case while calling it the base case, or to soften the bear case until it no longer functions as a genuine stress test. This is where scenario modelling a catalogue stops being analysis and starts being advocacy. Lenders and investors who cannot see the assumptions underneath each scenario are being asked to trust a narrative, not evaluate a cash flow.
The test of a good scenario model is not how flattering its output looks. It is whether each case can be defended, assumption by assumption, to someone who was not in the room when it was built, and whether the range between bear and bull is narrow enough to be useful and honest enough to be believed.
A model that only ever points one way was never modelling risk at all. It was modelling a preference, and calling it analysis.