======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '240'
                                          'artist'  'Parliament'
                                     'text_people'  ''
                                         'release'  'Osmium'
                                           'title'  'Little Ole Country Boy'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['p funk', 'soul', 'drjazzmrfunkmusic', '70s', 'psychedelic soul', 'funk']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '17'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '102'
                                             'key'  '3A'
                                        'acoustid'  '3a61dab6-d8aa-4962-b29f-5842cce668fb'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Osmium'
'TBPM' (BPM (beats per minute))                     '102'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Little Ole Country Boy'
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Parliament'
'TPE2' (Band/orchestra/accompaniment)               'Parliament'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Castle Music'
'TRCK' (Track number/Position in set)               '3/17'
'TSO2'                                              'Parliament'
'TSOP' (Performer sort order)                       'Parliament'
'TXXX:ASIN'                                         'B00005QIU5'
'TXXX:Acoustid Id'                                  '3a61dab6-d8aa-4962-b29f-5842cce668fb'
'TXXX:Artists'                                      'Parliament'
'TXXX:BARCODE'                                      '5050159133925'
'TXXX:CATALOGNUMBER'                                'CMRCD 339'
'TXXX:MusicBrainz Album Artist Id'                  'd1947987-9614-49ae-bd36-8000e6b6f7d0'
'TXXX:MusicBrainz Album Id'                         '9935d89f-a8dc-4948-ad3b-f13dfff9d11d'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd1947987-9614-49ae-bd36-8000e6b6f7d0'
'TXXX:MusicBrainz Release Group Id'                 'f3230b72-4536-3be9-ac86-c307e346a5a6'
'TXXX:MusicBrainz Release Track Id'                 'ec5bda8d-9774-3ffc-9f84-997133300325'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:fBPM'                                         '0.000000'
'TXXX:fBPMQuality'                                  '0.000000'
'TXXX:lastfmtags'                                   ['p funk', 'soul', 'drjazzmrfunkmusic', '70s', 'psychedelic soul', 'funk']
'TXXX:originalyear'                                 '1970'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.71 dB'
'TXXX:replaygain_track_peak'                        '0.393871'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'37d8edba-3961-43ae-826f-beaa7ab45a4f')

========================== row from database ==========================
                                              'id'  1528116
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/Parliament/parliament - singles & 12__ collection/Parliament - 0103little ole country boy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  240
                                           'genre'  funk or soul-funk
                                        'filesize'  3959856
                                           'mtime'  1620665655
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul parliament singles & 12__ collection 0103little ole country boy funk or soul funk
                                      'tag_artist'  Parliament
                                     'tag_release'  Osmium
                                       'tag_title'  Little Ole Country Boy
                                             'bpm'  102.0
                                    'search_title'  'boy':4 'country':3 'little':1 'ole':2
                                   'search_artist'  'parliament':1
                                  'search_release'  'osmium':1
                                     'search_rest'  '0103little':8 '12':6 'boy':11 'collection':7 'country':10 'funk':2 'ole':9 'or':12 'parliament':4 'singles':5 'soul':3 'swing':1
                                    'search_combo'  '0103little':14 '12':12 'boy':4A,17 'collection':13 'country':3A,16 'funk':8 'little':1A 'ole':2A,15 'or':18 'osmium':6C 'parliament':5B,10 'singles':11 'soul':9 'swing':7
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-4', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['p funk', 'soul', 'drjazzmrfunkmusic', '70s', 'psychedelic soul', 'funk']
                                        'tag_date'  2001
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620665654.58099  (2021-05-10 18:54:14)
                             'size'  3959856