mangodrum
mangodrum is a very simple to use percussion composer program for Windows which uses an easy to understand grid format for displaying the rhythm patterns. These compositions can then be played, recorded to MP3 files or saved as a PDF file. Each composition can consist of a range of instruments... The balance and volume of each instrument can be changed to fine tune the sound of your 'band' with instruments being easily created or downloaded from our web site. ... A playlist is used to bring together all the sections in your composition to create your final piece.
http://www.mangodrum.com/downloads/MangoDrum%20Setup.exe - 4Mb - Download - Screenshot

In-Tune Multi-Instrument Tuner
Tune your musical instrument quickly and accurately with this digital tuner. Uses microphone or direct electric guitar input for tuning. You can tune guitar, bass guitar, banjo, mandolin, violin, viola, cello, double bass, and other instruments using the pitch selector. ... Has choice of gauge and pitch graph views.
http://www.musicmasterworks.com/intune19.exe - 650Kb - Download - Screenshot

Awave Studio
Awave Studio let's you convert, edit, play or process a huge amount of audio & synthesizer file formats (around 260 different formats! ), including CD-ripping, MIDI SDS or SCSI SMDI transfers, reading of non-Windows compatible AKAI, Kurzweil and Roland CD-ROM's, conversion of mobile phone ring... - Need an instrument editor for your synthesizer or wavetable sound card? ... - Ever wanted to play a MIDI song that comes with an 'instrument bank' that were created for another wavetable sound card than yours?
http://www.fmjsoft.com/download/awave95.zip - 2Mb - Download - Screenshot

enable Guitar Tuner
enable Guitar Tuner performs real-time tuning for a range of instruments, as well as presets for each instrument in a variety of styles. You can transpose, use common jazz and orchestra references or even enter your own custom frequencies for unlimited flexibility. ... enable Guitar Tuner automatically determines your instrument / string's current frequency to high accuracy, and tells you the corresponding musical note. ... Learn to "tune by ear" using the Play Tone feature, which generates the note you are trying to play while you tune to it.
http://www.enableencore.com/encore/GuitarTunerDemo.exe - 4Mb - Download - Screenshot

Virtins Pocket Instrument
Virtins Pocket Instrument is a powerful Pocket PC based virtual instrument software. It consists of a real time oscilloscope, a real time spectrum analyzer and a signal generator, and can run them simultaneously. Unlike most of the sound card oscilloscopes in the market which search trigger... In contrast, most of other sound card based instrument spent much precious screen space to simply mimic the panel of the conventional instrument. ... Virtins Pocket instrument stores data in either standard WAV file or TXT file.
http://www.virtins.com/PocketINSSetup.exe - 1Mb - Download - Screenshot

enable TunerCE
enable TunerCE is a powerful instrument tuner which provides high precision tuning on handheld PCs. The tuner provides real-time tuning for a range of instruments, including presets for a number of string and wind instruments in a range of styles and transpositions. ... The tuner will also determine your instrument's current frequency, corresponding musical note and even octave offset to aid you in transcripting pieces you don't have sheet music for.
http://www.enablesoftware.com/TunerCE.exe - 338Kb - Download - Screenshot

Intelliscore Polyphonic WAV to MIDI Converter
IntelliScore converts WAV to MIDI, MP3 to MIDI, CD to MIDI. Compose MIDI music simply by singing or playing any instrument. * Convert MP3 and WAV files to MIDI * Grab music from a CD and convert it to a MID file * MIDI-enable any musical instrument, even your voice * Helps remove vocals for... You can also record directly into a MIDI editor using your voice or analog instrument. ... IntelliScore turns your voice or analog instrument into a realtime MIDI controller for live performance. ... * Multiple MIDI tracks.
http://www.intelliscore.net/ispd.exe - 3Mb - Download - Screenshot

tutor
Practice makes perfect: Try. And try again. There is no substitute to hard work. Let tutor revolutionize your instrument practice. Impress your instructor on your next session. Perfect pitch: Play the right note, every time. tutor listens to you, guiding you towards the right note on your... Tuning in: Keeping your instrument in tune has never been easier: the integrated tuner will allow you to be pitch-perfect, every time. ... Keep your instrument in top condition, and keep the guesswork out of your practice.
http://foxtrot-xray.com/demo/tutor.msi - 2Mb - Download - Screenshot

Chromatia Tuner
A Chromatic Multi-Temperament Instrument Tuner: - Use your computer as an advanced instrument tuner. - Works with almost any instrument. - Short response time! - Range: 9 octaves, C1 to C10. - Precision: Better than 0. 1 Hz up to ~C8. - Supports more than 30 different temperaments, from historic... create a table of measurement values (useful for instrument makers). ... - Optional real-time spectrum analyzer graph. ... mode conserves battery power on portables. ... - 'Power button' makes it easier to share the 'audio input' with other apps.
http://www.fmjsoft.com/download/ctuner31.zip - 624Kb - Download - Screenshot

EzyTuner Guitar Tuner
EzyTuner is a fast, accurate instrument / guitar tuner and metronome. Using your microphone it automatically detects the frequency of the instrument and calculates the note, so there is no need to tune by ear. Use it as a guitar tuner, bass tuner or even your singing voice. ... Why pay $100s for a guitar tuner when you can get one this cheap with a free metronome.
http://www.ezytuner.com/Downloads/ETsetup.exe - 608Kb - Download - Screenshot