Tonal Energy is a metronome app available for $3.99 on the App Store or Google Play store. The link sends you to the tonal energy website where you can browse the various functionalities of the app before you consider buying it. The tonal energy tuner is by far one of the best purchases one can make as a musician. The app functions as a metronome and a tuner, but it also allows you to record and listen back to your playing at any speed you choose with a waveform analysis telling you how sharp or flat you were at any given time. You can also use this app to track how much you practice and the progress you are making.

Musescore is a completely free, user-friendly music composition program. Almost every single music student will need to compose something at least once in their educational journey; Musescore is one of the best and most accessible free tools for this. The application requires a small learning curve but allows for complete creative freedom in every step along the compositional process. This link will lead you to the download page where you can also find a wide array of support including a community-driven support forum and FAQ.

The Random Scale Machine is a website that is as simple as its name implies; It gives you a random scale to play! There are 5 categories that you can choose from to get a randomly generated scale: major keys, minor keys, major AND minor keys, major AND harmonic minor AND melodic minor keys, or just the key name without a scale quality. If you don't have the time to practice all 36 scales regularly, this website is a great way to keep you unbias in your practice. 

The Yamaha Website has a good, interactive resource for fingering/position charts for most of the major instruments. Each page has an interactive image of the instrument that changes to the appropriate fingering when you select a note and it also gives you the option to view alternate fingering/positions.  This website is meant as a starting point for learning the fingerings for your instrument.  Another fantastic website is The Woodwind Fingering Guide, a complete guide to all woodwind instrtument fingerings (including bag pipes). That being said, there is no master website with all the detailed fingering charts you need, so some individual sleuthing is needed to locate more advanced charts.