======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '436'
                                          'artist'  'Filterheadz'
                                     'text_people'  ''
                                         'release'  'Uplifting Progressive Trance'
                                           'title'  'Heavy Hydrogen (Original Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['trance', 'techno', 'electronic', 'tech house', 'house']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-th-house-progressive'
                                             'bpm'  '128.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Uplifting Progressive Trance'
'TBPM' (BPM (beats per minute))                     '128.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-house-progressive'
'TIT2' (Title/songname/content description)         'Heavy Hydrogen (Original Mix)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Filterheadz'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf52.93.0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:audiodatarate'                                '129'
'TXXX:bytelength'                                   '38093695'
'TXXX:canseekontime'                                'true'
'TXXX:discogstags'                                  'electronic'
'TXXX:duration'                                     '436'
'TXXX:framerate'                                    '25'
'TXXX:height'                                       '480'
'TXXX:lastfmtags'                                   ['trance', 'techno', 'electronic', 'tech house', 'house']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.39 dB'
'TXXX:replaygain_track_peak'                        '0.348778'
'TXXX:sourcedata'                                   'B400F7428MM1349710097465738'
'TXXX:starttime'                                    '0'
'TXXX:totaldatarate'                                '699'
'TXXX:totalduration'                                '436'
'TXXX:videodatarate'                                '562'
'TXXX:width'                                        '854'

========================== row from database ==========================
                                              'id'  728560
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/tribal electro ~ classic progressive house ~ uplifting progressive trance/Filterheadz - Heavy Hydrogen (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  436
                                           'genre'  electronic-th-house-progressive
                                        'filesize'  17451968
                                           'mtime'  1620580672
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm tribal electro ~ classic progressive house ~ uplifting progressive trance electronic th house progressive
                                      'tag_artist'  Filterheadz
                                     'tag_release'  Uplifting Progressive Trance
                                       'tag_title'  Heavy Hydrogen (Original Mix)
                                             'bpm'  128.0
                                    'search_title'  'heavy':1 'hydrogen':2 'mix':5,6 'original':3,4
                                   'search_artist'  'filterheadz':1
                                  'search_release'  'progressive':2 'trance':3 'uplifting':1
                                     'search_rest'  'classic':3 'electro':2 'electronic':8 'house':5 'progressive':4 'th':9 'trance':7 'tribal':1 'uplifting':6
                                    'search_combo'  'classic':13 'electro':12 'electronic':18 'filterheadz':7B 'heavy':1A 'house':15 'hydrogen':2A 'mix':5A,6A 'original':3A,4A 'progressive':9C,14 'th':19 'trance':10C,17 'tribal':11 'uplifting':8C,16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-mixbeat-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['trance', 'techno', 'electronic', 'tech house', 'house']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620580671.943697  (2021-05-09 19:17:51)
                             'size'  17451968