======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '202'
                                          'artist'  'Steve Earle'
                                     'text_people'  ''
                                         'release'  'Trancendental Blues'
                                           'title'  "Don't Want to Lose You"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'rock', 'alt country', 'americana', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '120.256'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Trancendental Blues'
'TBPM' (BPM (beats per minute))                     '120.256'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         "Don't Want to Lose You"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Steve Earle'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'rock', 'alt country', 'americana', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.58 dB'
'TXXX:replaygain_track_peak'                        '0.453593'

========================== row from database ==========================
                                              'id'  246926
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Steve Earle/cifsba1d.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  202
                                           'genre'  ifs-songwriter
                                        'filesize'  3249661
                                           'mtime'  1637330571
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos cifsba1d ifs songwriter
                                      'tag_artist'  Steve Earle
                                     'tag_release'  Trancendental Blues
                                       'tag_title'  Don't Want to Lose You
                                             'bpm'  120.256
                                    'search_title'  'don':1 'dont':3 'lose':6 't':2 'to':5 'want':4 'you':7
                                   'search_artist'  'earle':2 'steve':1
                                  'search_release'  'blues':2 'trancendental':1
                                     'search_rest'  '00singer':1 'cifsba1d':4 'eos':3 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':12 'blues':11C 'cifsba1d':15 'don':1A 'dont':3A 'earle':9B 'eos':14 'ifs':16 'lose':6A 'songwriter':13 'steve':8B 't':2A 'to':5A 'trancendental':10C 'want':4A 'you':7A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'rock', 'alt country', 'americana', 'singer songwriter']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330571.0535252  (2021-11-19 15:02:51)
                             'size'  3249661