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Message: [QUOTE="Bombastus, post: 91814, member: 2178"] GSi Piano Studio costs €50 plus applicable tax on desktop, while Pianoteq 9 starts at $139 for the Stage edition. The gap looks simple until you compare what each purchase actually contains, because the two products organize physical modeling in very different ways. GSi gives you one modeled grand-piano environment with adjustable hammer hardness, damping, detuning, sympathetic resonance, microphones, preamps, ambience, EQ, delay, reverb, and performance controls. Pianoteq is sold as an expandable instrument platform, with Stage including two instrument packs and higher editions adding more packs and deeper editing. Version 1.1.0 sharpened [B][URL='https://goldmidi.com/community/threads/gsi-refined-piano-studio-1-1-0-piano-model.77152/']GSi Piano Studio's physical modeling and recording controls[/URL][/B] rather than turning it into a broad instrument catalog. Buy it when that focused piano workspace suits you. Compare Pianoteq when you expect the software itself to grow into a larger modeled-keyboard collection. [HEADING=2]The cheapest editions solve different problems[/HEADING] Pianoteq Stage is not a cut-down sound engine. Modartt says Stage, Standard, and Pro share the same sound and playability, while the editions differ mainly in editing depth and the number of included instrument packs. Stage gives you two packs but leaves out physical-model tweaking and microphone positioning. GSi takes nearly the opposite approach. Its single product already exposes modeling controls alongside 12 virtual microphones and nine preamp types, so you can reshape the piano without climbing through several desktop editions. The limitation is breadth rather than access. You are buying a focused grand-piano instrument, not choosing among a growing catalog of grands, uprights, historical keyboards, electric pianos, harps, and other modeled instruments. Price therefore matters most when your requirement is narrow. Someone who wants one compact modeled grand can compare GSi's desktop price against Pianoteq Stage without pretending the products contain equivalent catalogs. Someone already planning to collect several modeled instruments should calculate the cost of the Pianoteq packs they actually want instead of comparing only the first checkout screen. The editing comparison changes again at Pianoteq Standard. Standard adds physical-model adjustment, advanced tuning, microphone positioning, external reverb impulses, morphing, and layering. Pro goes further with extensive note-by-note editing and higher internal audio-rate options. GSi does not mirror that edition ladder. [HEADING=2]Physical modeling does not make the workflows identical[/HEADING] Both instruments avoid building their core piano around a huge multisampled library, but physical modeling is a method, not a guarantee that two products behave or sound alike. [B][URL='https://doi.org/10.1109/MSP.2018.2872349']Research on model-based digital pianos[/URL][/B] describes real-time piano synthesis as a balance between physical accuracy, computational efficiency, and perceptually important behavior. Different designers can make different choices within that balance. Use the same MIDI file and controller when comparing them. Match perceived output level, remove extra reverb, choose reasonably neutral presets, and play soft repetitions, hard accents, sustained chords, half-pedal passages, and exposed decays. Switching between spectacular factory presets proves very little because microphone position, ambience, EQ, dynamics, and voicing can dominate the first impression. Pay attention to how quickly you reach the sound you need. GSi keeps microphone types, preamps, model parameters, and conventional effects inside one relatively direct piano interface. Pianoteq Stage favors preset-driven playing, while Standard and Pro open a much deeper editing environment. More control is valuable only when you will use it. Your controller also matters. A velocity curve that fits one instrument badly can make its soft notes disappear, or its hard notes arrive too soon, producing a false verdict about the sound engine. Calibrate both before comparing responsiveness. [HEADING=2]Platform support can decide the purchase early[/HEADING] GSi Piano Studio runs on Windows, macOS, iPhone, and iPad, with desktop plug-in formats plus standalone operation and AUv3 on iOS. Pianoteq supports Windows, macOS, Linux, and iOS, and its desktop support includes VST3, Audio Units, AAX, NKS, and standalone operation. Linux users therefore have a straightforward reason to favor Pianoteq. A Pro Tools user may care about native AAX support. An iPad player can run either product, but the buying structure differs because GSi's iOS app is listed separately at $19.99 while Pianoteq belongs to Modartt's broader cross-platform product system. Do not make storage size the deciding headline. Both products are compact precisely because modeling replaces the giant recorded-note collections used by large sample libraries, and installation figures can refer to different platforms or packages. Workflow, controller response, instrument breadth, editing depth, and host compatibility will affect you every session. Pick GSi when you want an inexpensive, focused modeled grand with substantial tone shaping already exposed. Pick Pianoteq Stage when you want its instrument ecosystem without deep editing, Standard when model and microphone control matter, and Pro when detailed per-note shaping is genuinely part of your work. Paying for unused depth is still paying for it. [/QUOTE]

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