======================== unified (from filesystem) ========================
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                                        'duration'  '156'
                                          'artist'  'Mrs. Miller'
                                     'text_people'  ''
                                         'release'  "Ultra-Lounge: Wild, Cool & Swingin': The Artist Collection, Volume 3"
                                           'title'  "Let's Hang On"
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
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 "'q-chart-1', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['funny', 'weird', 'comedy', 'outsider', 'american']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '21'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '135'
                                             'key'  '9B'
                                        'acoustid'  '44d7408e-af0b-4303-bcec-bc8a91c2e034'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            'Excellent'
'COMM:MusicMatch_Preference:eng'                    'Excellent'
'TALB' (Album/Movie/Show title)                     "Ultra-Lounge: Wild, Cool & Swingin': The Artist Collection, Volume 3"
'TBPM' (BPM (beats per minute))                     '135'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-06-08'
'TIT2' (Title/songname/content description)         "Let's Hang On"
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Mrs. Miller'
'TPE2' (Band/orchestra/accompaniment)               'Mrs. Miller'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Capitol Records'
'TRCK' (Track number/Position in set)               '2/21'
'TSO2'                                              'Mrs. Miller'
'TSOP' (Performer sort order)                       'Mrs. Miller'
'TXXX:ASIN'                                         'B00000J600'
'TXXX:Acoustid Id'                                  '44d7408e-af0b-4303-bcec-bc8a91c2e034'
'TXXX:Artists'                                      'Mrs. Miller'
'TXXX:BARCODE'                                      '724352033423'
'TXXX:CATALOGNUMBER'                                'CDP 7243 5 20334 2 3'
'TXXX:MusicBrainz Album Artist Id'                  '6833d130-3153-4211-9e80-132c76fa4910'
'TXXX:MusicBrainz Album Id'                         '117f04b5-8b94-4320-ad4e-0a12411642ff'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '6833d130-3153-4211-9e80-132c76fa4910'
'TXXX:MusicBrainz Release Group Id'                 '1b4f7f3e-dcc7-362b-b181-d124db5dc314'
'TXXX:MusicBrainz Release Track Id'                 'e16334e2-4d1d-3280-9363-84b5e1cdeb66'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['funny', 'weird', 'comedy', 'outsider', 'american']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.19 dB'
'TXXX:replaygain_track_peak'                        '0.568667'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'52e03bda-75df-42f5-8670-30d97bb6d8a3')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Mrs. Miller/Ultra Lounge ~ Wild, Cool & Swingin_ ~ Mrs Miller ~ The Artists Collection [192k]/Mrs. Miller - 02 - Let_s Hang On.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  156
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  3873750
                                           'mtime'  1636915789
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm ~ Swingin_ ~ ~ Artists [192k] 02 Let_s electronic experimental oddness
                                      'tag_artist'  Mrs. Miller
                                     'tag_release'  Ultra-Lounge: Wild, Cool & Swingin': The Artist Collection, Volume 3
                                       'tag_title'  Let's Hang On
                                             'bpm'  135.0
                                    'search_title'  'hang':4 'let':1 'lets':3 'on':5 's':2
                                   'search_artist'  'miller':3 'mrs':1,2
                                  'search_release'  '3':14 'artist':10 'collection':11,12 'cool':6 'lounge':2 'swingin':7,8 'the':9 'ultra':1 'ultralounge':3 'volume':13 'wild':4,5
                                     'search_rest'  '192k':3,4 'artists':2 'electronic':7 'experimental':8 'let':5 'oddness':9 's':6 'swingin':1
                                    'search_combo'  '192k':25,26 '3':22C 'artist':18C 'artists':24 'collection':19C,20C 'cool':14C 'electronic':29 'experimental':30 'hang':4A 'let':1A,27 'lets':3A 'lounge':10C 'miller':8B 'mrs':6B,7B 'oddness':31 'on':5A 's':2A,28 'swingin':15C,16C,23 'the':17C 'ultra':9C 'ultralounge':11C 'volume':21C 'wild':12C,13C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['funny', 'weird', 'comedy', 'outsider', 'american']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636915788.6606016  (2021-11-14 19:49:48)
                             'size'  3873750