[Verse 1] In Angular's world, there's a blueprint so grand Four pillars that hold what developers command Modules are containers that bundle your code Components paint pixels where data has flowed Services carry logic that multiple parts need Injection weaves patterns like planting a seed [Chorus] M-C-S-D, that's the way we build today Modules, Components, Services, DI Hierarchical magic flows down from the sky Remember M-C-S-D, Angular's battle cry [Verse 2] NgModule decorators mark the boundary lines Import what you need, export what shines Root module launches when bootstrap begins Feature modules organize where each story spins Lazy loading splits bundles when size matters most Each module's a kingdom with its own host [Chorus] M-C-S-D, that's the way we build today Modules, Components, Services, DI Hierarchical magic flows down from the sky Remember M-C-S-D, Angular's battle cry [Verse 3] Components hold templates where HTML lives TypeScript classes define what each one gives Selector tags mark where each piece appears Input properties catch data like fishing with spears Output events bubble messages up the tree Component lifecycle hooks set your logic free [Bridge] Injectable marks services ready to share Singleton instances float everywhere Constructor parameters tell what you crave Dependency tree resolves what you need to save From root down to leaf, providers cascade Hierarchical magic that never will fade [Verse 4] Providers register tokens in the injection game Same token, different scope, but they share the name Child injectors shadow what parents contain Resolution bubbles up the provider chain ElementInjector beats ModuleInjector's claim Dependency dance follows the hierarchy's frame [Chorus] M-C-S-D, that's the way we build today Modules, Components, Services, DI Hierarchical magic flows down from the sky Remember M-C-S-D, Angular's battle cry [Outro] Four pillars standing, architecture complete Where modules and components and services meet Injection connects them in patterns so neat M-C-S-D makes your Angular sweet
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