======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '231'
                                          'artist'  'Sir Troyan'
                                     'text_people'  ''
                                         'release'  'Spiritual Traveler'
                                           'title'  'Earthquake (Original Mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-modern'
                                             'bpm'  '138.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Spiritual Traveler'
'TBPM' (BPM (beats per minute))                     '138.1'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-modern'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Earthquake (Original Mix)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sir Troyan'
'TRCK' (Track number/Position in set)               '5'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf57.83.100'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:compatible_brands'                            'isommp42'
'TXXX:major_brand'                                  'mp42'
'TXXX:minor_version'                                '0'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.51 dB'
'TXXX:replaygain_track_peak'                        '0.718933'

========================== row from database ==========================
                                              'id'  1390088
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Sir Troyan - Spiritual Traveler (2015)/5 - Earthquake (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  231
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-modern
                                        'filesize'  7407628
                                           'mtime'  1620522286
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub (2015) 5 loc style reggae or dub or ska or dancehall dub modern
                                      'tag_artist'  Sir Troyan
                                     'tag_release'  Spiritual Traveler
                                       'tag_title'  Earthquake (Original Mix)
                                             'bpm'  138.1
                                    'search_title'  'earthquake':1 'mix':4,5 'original':2,3
                                   'search_artist'  'sir':1 'troyan':2
                                  'search_release'  'spiritual':1 'traveler':2
                                     'search_rest'  '00reggae':1 '2015':3,4 '5':5 'dancehall':11 'dub':2 'loc':6 'modern':12 'or':9 'reggae':8 'ska':10 'style':7
                                    'search_combo'  '00reggae':10 '2015':12,13 '5':14 'dancehall':20 'dub':11 'earthquake':1A 'loc':15 'mix':4A,5A 'modern':21 'or':18 'original':2A,3A 'reggae':17 'sir':6B 'ska':19 'spiritual':8C 'style':16 'traveler':9C 'troyan':7B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620522285.7890666  (2021-05-09 03:04:45)
                             'size'  7407628