Question: The composer of the only audio file in the game Spirit of the Stones belonged to which group

Context paragraphs:
Modest Mussorgsky: Modest Petrovich Mussorgsky (Russian: Моде́ст Петро́вич Му́соргский ; ] ; 21 March [O.S. 9 March] 1839 – 28 March [O.S. 16 March] 1881 ) was a Russian composer, one of the group known as "The Five".  He was an innovator of Russian music in the romantic period.  He strove to achieve a uniquely Russian musical identity, often in deliberate defiance of the established conventions of Western music.

WAV: Waveform Audio File Format (WAVE, or more commonly known as WAV due to its filename extension) (rarely, Audio for Windows) is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs.  It is an application of the Resource Interchange File Format (RIFF) bitstream format method for storing data in "chunks", and thus is also close to the 8SVX and the AIFF format used on Amiga and Macintosh computers, respectively.  It is the main format used on Windows systems for raw and typically uncompressed audio.  The usual bitstream encoding is the linear pulse-code modulation (LPCM) format.

List of audio conversion software: An audio conversion app (also known as an audio converter) transcodes one audio file format into another; for example, from FLAC into MP3.  It may allow selection of encoding parameters for each of the output file to optimize its quality and size.  An audio converter uses at least two sets of audio codecs to decode the source file format and to encode the destination file.

Spirit of the Stones: Spirit of the Stones is an action video game that runs on the Commodore 64 and takes place on the Isle of Wight.  It is based on a book by John Howard Worsley.  The one and only audio file used in the entire game is Modest Mussorgsky's Night on Bald Mountain composed by Chris Cox.

Audio file format: An audio file format is a file format for storing digital audio data on a computer system.  The bit layout of the audio data (excluding metadata) is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression.  The data can be a raw bitstream in an audio coding format, but it is usually embedded in a container format or an audio data format with defined storage layer.

FluidSynth: FluidSynth, formerly named iiwusynth, is a free open source software synthesizer which converts Musical Instrument Digital Interface (MIDI) note data into an audio signal using SoundFont technology without need for a SoundFont-compatible soundcard.  FluidSynth can act as a virtual MIDI device, able to receive MIDI data from any program and transform it into audio on-the-fly.  It can also read in SMF (. mid) files directly.  On the output side, it can send audio data directly to an audio device for playback, or to a Raw or Wave file.  It can also convert a SMF file directly to an audio file in faster-than-real-time.  The combination of these features gives FluidSynth the following major use cases:

Intelligent Audio File: Intelligent Audio File (IAF) is a proprietary audio file type.  It provides advanced digital dictation functionality, such as the ability to instantly undo and redo audio edits as well as the ability to insert text, images or other documents all within the same dictation file.  Intelligent audio file also has the ability to record in a protected format whereby the audio cannot be edited or modified and it can also be encrypted.

Raw audio format: RAW Audio format or just RAW Audio is an audio file format for storing uncompressed audio in raw form.  Comparable to WAV or AIFF in size, RAW Audio file does not include any header information (sampling rate, bit depth, endian, or number of channels).  Data can be written in PCM, IEEE 754 or ASCII.

LRC (file format): LRC (short for LyRiCs) is a computer file format that synchronizes song lyrics with an audio file, such as MP3, Vorbis or MIDI.  When an audio file is played with certain music players on a computer or on modern digital audio players, the song lyrics are displayed.  The lyrics file generally has the same name as the audio file, with a different filename extension.  For example, song.mp3 and song.lrc.  The LRC format is text-based and similar to subtitle files.

Switch Audio File Conversion Software: Switch Audio File Converter Software is an audio file conversion software published by NCH Software available for Windows, Macintosh and Android Operating Systems.  Top 10 Reviews considered Switch the best soft audio converter available as recently as early 2017.  While there are many options for audio file conversion, Switch is still considered one of the most stable and comprehensive multi format audio file converters available.

Supporting paragraphs: Spirit of the Stones Modest Mussorgsky
Answer: The Five