Methods for making a micromachined device having positive features and negative features. A portion of the pressurized air flows into the bearing area, while the remainder of the air flows outwardly and is either fed back into the main gas flow path or is combined with air and gaseous fuel that leaks past an outer seal and is recirculated back to the compressor inlet. 2% by weight of at least one element selected from niobium and tantalum and the balance of nickel. Individual notes of the harmonizing tracks are manipulated based on a chord strictness threshold and an audio output is provided based on the audio input and the manipulated plurality of harmonizing tracks. A novel fixture for holding fasteners to be processed and an element sealing device having a fastener with a resilient sealing element adhered to a portion thereof with a depression formed therein in close proximity to a portion of the fastener is also provided. When a product is returned, the retailer may cross-reference the serial number on the product with that on the receipt to verify the sales receipt.