======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '178'
                                          'artist'  "O'jays"
                                     'text_people'  ''
                                         'release'  '100 Oldies Deel 34'
                                           'title'  'Love Train'
                                           'quals'  ("['Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'funk', 'motown', 'philly soul', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '51'
                                      'tracktotal'  '100'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '121.191'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '100 Oldies Deel 34'
'TBPM' (BPM (beats per minute))                     '121.191'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'Mister X'
'TIT2' (Title/songname/content description)         'Love Train'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               "O'jays"
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '51/100'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'funk', 'motown', 'philly soul', '70s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.02 dB'
'TXXX:replaygain_track_peak'                        '0.329044'

========================== row from database ==========================
                                              'id'  1498723
                                            'path'  /data/Music/Bulk/00poprockelectronic/100 oldies deel 35/51 O_jays - Love Train.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  178
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  7646587
                                           'mtime'  1620565261
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic oldies deel 35 51 O_jays electronic generic or radio unsorted
                                      'tag_artist'  O'jays
                                     'tag_release'  100 Oldies Deel 34
                                       'tag_title'  Love Train
                                             'bpm'  121.191
                                    'search_title'  'love':1 'train':2
                                   'search_artist'  'jays':2 'o':1 'ojays':3
                                  'search_release'  '100':1 '34':4 'deel':3 'oldies':2
                                     'search_rest'  '00poprockelectronic':1 '35':4 '51':5 'deel':3 'electronic':8 'generic':9 'jays':7 'o':6 'oldies':2 'or':10 'radio':11 'unsorted':12
                                    'search_combo'  '00poprockelectronic':10 '100':6C '34':9C '35':13 '51':14 'deel':8C,12 'electronic':17 'generic':18 'jays':4B,16 'love':1A 'o':3B,15 'ojays':5B 'oldies':7C,11 'or':19 'radio':20 'train':2A 'unsorted':21
                                    'tag_tracknum'  51
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'funk', 'motown', 'philly soul', '70s']
                                        'tag_date'  2007
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620565260.5566678  (2021-05-09 15:01:00)
                             'size'  7646587