======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '251'
                                          'artist'  'The Original'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'I Luv U Baby'
                                           'quals'  ("['Q-SYN-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', '90s', 'vocal house', 'house', 'eurodance']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '20'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-eurodance'
                                             'bpm'  '129.233'
                                             'key'  '4A'
                                        'acoustid'  '13955552-3af3-41e5-b3da-e4eec360322c'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '129.233'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-eurodance'
'TDRC' (Recording time)                             '1995'
'TENC' (Encoded by)                                 'RioPort MP3 2.0'
'TIT2' (Title/songname/content description)         'I Luv U Baby'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Original'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '6/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Original, The'
'TXXX:ASIN'                                         'B000003R89'
'TXXX:Acoustid Id'                                  '13955552-3af3-41e5-b3da-e4eec360322c'
'TXXX:Artists'                                      'The Original'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', '90s', 'vocal house', 'house', 'eurodance']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.09 dB'
'TXXX:replaygain_track_peak'                        '0.582866'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'bdbf945c-b201-4f68-94e6-45dbb8f12dd9')

========================== row from database ==========================
                                              'id'  1299136
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/The Original - I Luv U Baby [Supermix Dance Hits Volume 2].mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  251
                                           'genre'  electronic-th-ent-eurodance
                                        'filesize'  4113684
                                           'mtime'  1639511354
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] [Supermix Dance Hits Volume 2] electronic th ent eurodance
                                      'tag_artist'  The Original
                                     'tag_release'  None
                                       'tag_title'  I Luv U Baby
                                             'bpm'  129.233
                                    'search_title'  'baby':4 'i':1 'luv':2 'u':3
                                   'search_artist'  'original':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '2':12,13 'dance':9 'electronic':14 'ent':16 'eurodance':17 'files':5,6 'hits':10 'loose':3,4 'supermix':7,8 'th':15 'unsorted':2 'volume':11
                                    'search_combo'  '00poprockelectronic':7 '2':18,19 'baby':4A 'dance':15 'electronic':20 'ent':22 'eurodance':23 'files':11,12 'hits':16 'i':1A 'loose':9,10 'luv':2A 'original':6B 'supermix':13,14 'th':21 'the':5B 'u':3A 'unsorted':8 'volume':17
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'Q-SYN-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', '90s', 'vocal house', 'house', 'eurodance']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1639511354.2314289  (2021-12-14 20:49:14)
                             'size'  4113684